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Finding the Third Proportional to 71,472 and 156,958

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Solution

The third proportional to 71,472 and 156,958 is: 344,691.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,472 : 156,958 = 156,958 : x
  2. Step 2: Convert to fraction form
    71,472/156,958 = 156,958/x
  3. Step 3: Cross multiply
    71,472x = 156,958 × 156,958
  4. Step 4: Simplify right side
    71,472x = 24,635,813,764
  5. Step 5: Solve for x
    x = 24,635,813,764/71,472
  6. Step 6: Final answer
    x = 344,691.82

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.