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Finding the Fourth Proportional to 71,761.32, 107,649.32 and 27,425.39

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Solution

The fourth proportional to 71,761.32, 107,649.32 and 27,425.39 is: 41,140.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,761.32 : 107,649.32 = 27,425.39 : x
  2. Step 2: Convert to fraction form
    71,761.32/107,649.32 = 27,425.39/x
  3. Step 3: Cross multiply
    71,761.32x = 107,649.32 × 27,425.39
  4. Step 4: Simplify right side
    71,761.32x = 2,952,323,908.86
  5. Step 5: Solve for x
    x = 2,952,323,908.86/71,761.32
  6. Step 6: Final answer
    x = 41,140.88

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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.