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Finding the Fourth Proportional to 86,337.82, 129,472.68 and 41,951.44

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Solution

The fourth proportional to 86,337.82, 129,472.68 and 41,951.44 is: 62,910.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,337.82 : 129,472.68 = 41,951.44 : x
  2. Step 2: Convert to fraction form
    86,337.82/129,472.68 = 41,951.44/x
  3. Step 3: Cross multiply
    86,337.82x = 129,472.68 × 41,951.44
  4. Step 4: Simplify right side
    86,337.82x = 5,431,565,366.66
  5. Step 5: Solve for x
    x = 5,431,565,366.66/86,337.82
  6. Step 6: Final answer
    x = 62,910.62

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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.