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Finding the Fourth Proportional to 125,253.28, 172,848.89 and 67,892.37

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Solution

The fourth proportional to 125,253.28, 172,848.89 and 67,892.37 is: 93,691.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,253.28 : 172,848.89 = 67,892.37 : x
  2. Step 2: Convert to fraction form
    125,253.28/172,848.89 = 67,892.37/x
  3. Step 3: Cross multiply
    125,253.28x = 172,848.89 × 67,892.37
  4. Step 4: Simplify right side
    125,253.28x = 11,735,120,793.97
  5. Step 5: Solve for x
    x = 11,735,120,793.97/125,253.28
  6. Step 6: Final answer
    x = 93,691.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.