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Finding the Fourth Proportional to 217,901.52, 326,871.11 and 60,129.97

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Solution

The fourth proportional to 217,901.52, 326,871.11 and 60,129.97 is: 90,200.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,901.52 : 326,871.11 = 60,129.97 : x
  2. Step 2: Convert to fraction form
    217,901.52/326,871.11 = 60,129.97/x
  3. Step 3: Cross multiply
    217,901.52x = 326,871.11 × 60,129.97
  4. Step 4: Simplify right side
    217,901.52x = 19,654,749,371.31
  5. Step 5: Solve for x
    x = 19,654,749,371.31/217,901.52
  6. Step 6: Final answer
    x = 90,200.15

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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.