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Finding the Fourth Proportional to 72,565.83, 108,857.39 and 44,472.87

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Solution

The fourth proportional to 72,565.83, 108,857.39 and 44,472.87 is: 66,714.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,565.83 : 108,857.39 = 44,472.87 : x
  2. Step 2: Convert to fraction form
    72,565.83/108,857.39 = 44,472.87/x
  3. Step 3: Cross multiply
    72,565.83x = 108,857.39 × 44,472.87
  4. Step 4: Simplify right side
    72,565.83x = 4,841,200,331.64
  5. Step 5: Solve for x
    x = 4,841,200,331.64/72,565.83
  6. Step 6: Final answer
    x = 66,714.60

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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.