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Finding the Fourth Proportional to 118,542.38, 177,631.76 and 80,543.25

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Solution

The fourth proportional to 118,542.38, 177,631.76 and 80,543.25 is: 120,691.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,542.38 : 177,631.76 = 80,543.25 : x
  2. Step 2: Convert to fraction form
    118,542.38/177,631.76 = 80,543.25/x
  3. Step 3: Cross multiply
    118,542.38x = 177,631.76 × 80,543.25
  4. Step 4: Simplify right side
    118,542.38x = 14,307,038,850.90
  5. Step 5: Solve for x
    x = 14,307,038,850.90/118,542.38
  6. Step 6: Final answer
    x = 120,691.35

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