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Finding the Fourth Proportional to 100,042.49, 138,101.15 and 62,335.37

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Solution

The fourth proportional to 100,042.49, 138,101.15 and 62,335.37 is: 86,049.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,042.49 : 138,101.15 = 62,335.37 : x
  2. Step 2: Convert to fraction form
    100,042.49/138,101.15 = 62,335.37/x
  3. Step 3: Cross multiply
    100,042.49x = 138,101.15 × 62,335.37
  4. Step 4: Simplify right side
    100,042.49x = 8,608,586,282.68
  5. Step 5: Solve for x
    x = 8,608,586,282.68/100,042.49
  6. Step 6: Final answer
    x = 86,049.30

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