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Finding the Fourth Proportional to 118,328.40, 177,492.60 and 74,005.20

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Solution

The fourth proportional to 118,328.40, 177,492.60 and 74,005.20 is: 111,007.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,328.40 : 177,492.60 = 74,005.20 : x
  2. Step 2: Convert to fraction form
    118,328.40/177,492.60 = 74,005.20/x
  3. Step 3: Cross multiply
    118,328.40x = 177,492.60 × 74,005.20
  4. Step 4: Simplify right side
    118,328.40x = 13,135,375,361.52
  5. Step 5: Solve for x
    x = 13,135,375,361.52/118,328.40
  6. Step 6: Final answer
    x = 111,007.80

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