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Finding the Fourth Proportional to 83,702.52, 125,488.14 and 39,306.42

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Solution

The fourth proportional to 83,702.52, 125,488.14 and 39,306.42 is: 58,928.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,702.52 : 125,488.14 = 39,306.42 : x
  2. Step 2: Convert to fraction form
    83,702.52/125,488.14 = 39,306.42/x
  3. Step 3: Cross multiply
    83,702.52x = 125,488.14 × 39,306.42
  4. Step 4: Simplify right side
    83,702.52x = 4,932,489,535.86
  5. Step 5: Solve for x
    x = 4,932,489,535.86/83,702.52
  6. Step 6: Final answer
    x = 58,928.81

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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.