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Finding the Fourth Proportional to 62,691.96, 93,813.24 and 54,287.40

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Solution

The fourth proportional to 62,691.96, 93,813.24 and 54,287.40 is: 81,236.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,691.96 : 93,813.24 = 54,287.40 : x
  2. Step 2: Convert to fraction form
    62,691.96/93,813.24 = 54,287.40/x
  3. Step 3: Cross multiply
    62,691.96x = 93,813.24 × 54,287.40
  4. Step 4: Simplify right side
    62,691.96x = 5,092,876,885.18
  5. Step 5: Solve for x
    x = 5,092,876,885.18/62,691.96
  6. Step 6: Final answer
    x = 81,236.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.