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Finding the Fourth Proportional to 57,791.21, 86,714.28 and 40,049.17

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Solution

The fourth proportional to 57,791.21, 86,714.28 and 40,049.17 is: 60,092.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,791.21 : 86,714.28 = 40,049.17 : x
  2. Step 2: Convert to fraction form
    57,791.21/86,714.28 = 40,049.17/x
  3. Step 3: Cross multiply
    57,791.21x = 86,714.28 × 40,049.17
  4. Step 4: Simplify right side
    57,791.21x = 3,472,834,724.36
  5. Step 5: Solve for x
    x = 3,472,834,724.36/57,791.21
  6. Step 6: Final answer
    x = 60,092.79

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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.