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Finding the Fourth Proportional to 169,046.72, 253,572.96 and 63,915.20

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Solution

The fourth proportional to 169,046.72, 253,572.96 and 63,915.20 is: 95,873.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,046.72 : 253,572.96 = 63,915.20 : x
  2. Step 2: Convert to fraction form
    169,046.72/253,572.96 = 63,915.20/x
  3. Step 3: Cross multiply
    169,046.72x = 253,572.96 × 63,915.20
  4. Step 4: Simplify right side
    169,046.72x = 16,207,166,452.99
  5. Step 5: Solve for x
    x = 16,207,166,452.99/169,046.72
  6. Step 6: Final answer
    x = 95,873.89

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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.