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Finding the Fourth Proportional to 82,481.82, 123,712.56 and 35,115.96

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Solution

The fourth proportional to 82,481.82, 123,712.56 and 35,115.96 is: 52,669.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,481.82 : 123,712.56 = 35,115.96 : x
  2. Step 2: Convert to fraction form
    82,481.82/123,712.56 = 35,115.96/x
  3. Step 3: Cross multiply
    82,481.82x = 123,712.56 × 35,115.96
  4. Step 4: Simplify right side
    82,481.82x = 4,344,285,308.46
  5. Step 5: Solve for x
    x = 4,344,285,308.46/82,481.82
  6. Step 6: Final answer
    x = 52,669.61

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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.