Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation. 

74 * 34 * 78 * 23 * 23 * 30

Here, we use the BODMAS table given below:

Given:

⇒ 74 * 34 * 78 * 23 * 23 * 30

(1) ÷, -, +, ×, =

⇒ 74 * 34 * 78 * 23 * 23 * 30

After putting the signs:

⇒74 ÷ 34 - 78 + 23 × 23 = 30

Apply BODMAS rule:

⇒ 2.17 - 78 + 23 × 23

⇒ 2.17 - 78 + 529

⇒ 531.17 - 78 = 453.17

Here, the equation is not satisfied.

(2) +, ÷, ×, -, =

⇒ 74 * 34 * 78 * 23 * 23 * 30

After putting the signs:

⇒ 74 + 34 ÷ 78 × 23 - 23 = 30

Apply BODMAS rule:

⇒ 74 + 0.435 × 23 - 23

⇒ 74 + 10.02 - 23

⇒ 84.02 - 23 = 61.02

Here, the equation is not satisfied.

(3) +, -, +, -, =

⇒ 74 * 34 * 78 * 23 * 23 * 30

After putting the signs:

⇒ 74 + 34 - 78 + 23 - 23 = 30

Apply BODMAS rule:

⇒ 131 - 78 - 23

⇒ 131 - 101 = 30

⇒ '74 + 34 - 78 + 23 - 23 = 30'

Here, the equation is satisfied.

(4) -, ÷, +, ×, =

⇒ 74 * 34 * 78 * 23 * 23 * 30

After putting the signs:

⇒ 74 - 34 ÷ 78 + 23 × 23 = 30

Apply BODMAS rule:

⇒ 74 - 0.435 + 23 × 23

⇒ 74 - 0.435 + 529

⇒ 603 - 0.435 = 602.56

Here, the equation is not satisfied.

Hence, the correct answer is "Option (3)".