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Finding the Fourth Proportional to 92,685.73, 138,932.27 and 39,411.89

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Solution

The fourth proportional to 92,685.73, 138,932.27 and 39,411.89 is: 59,076.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,685.73 : 138,932.27 = 39,411.89 : x
  2. Step 2: Convert to fraction form
    92,685.73/138,932.27 = 39,411.89/x
  3. Step 3: Cross multiply
    92,685.73x = 138,932.27 × 39,411.89
  4. Step 4: Simplify right side
    92,685.73x = 5,475,583,342.69
  5. Step 5: Solve for x
    x = 5,475,583,342.69/92,685.73
  6. Step 6: Final answer
    x = 59,076.88

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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.