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Finding the Fourth Proportional to 56,761.41, 85,010.89 and 54,793.11

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Solution

The fourth proportional to 56,761.41, 85,010.89 and 54,793.11 is: 82,062.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,761.41 : 85,010.89 = 54,793.11 : x
  2. Step 2: Convert to fraction form
    56,761.41/85,010.89 = 54,793.11/x
  3. Step 3: Cross multiply
    56,761.41x = 85,010.89 × 54,793.11
  4. Step 4: Simplify right side
    56,761.41x = 4,658,011,046.97
  5. Step 5: Solve for x
    x = 4,658,011,046.97/56,761.41
  6. Step 6: Final answer
    x = 82,062.99

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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.