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Finding the Fourth Proportional to 96,107.71, 132,691.05 and 86,018.66

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Solution

The fourth proportional to 96,107.71, 132,691.05 and 86,018.66 is: 118,761.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,107.71 : 132,691.05 = 86,018.66 : x
  2. Step 2: Convert to fraction form
    96,107.71/132,691.05 = 86,018.66/x
  3. Step 3: Cross multiply
    96,107.71x = 132,691.05 × 86,018.66
  4. Step 4: Simplify right side
    96,107.71x = 11,413,905,221.44
  5. Step 5: Solve for x
    x = 11,413,905,221.44/96,107.71
  6. Step 6: Final answer
    x = 118,761.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.