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Finding the Fourth Proportional to 487,166.22, 730,663.11 and 132,207.87

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Solution

The fourth proportional to 487,166.22, 730,663.11 and 132,207.87 is: 198,288.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,166.22 : 730,663.11 = 132,207.87 : x
  2. Step 2: Convert to fraction form
    487,166.22/730,663.11 = 132,207.87/x
  3. Step 3: Cross multiply
    487,166.22x = 730,663.11 × 132,207.87
  4. Step 4: Simplify right side
    487,166.22x = 96,599,413,460.68
  5. Step 5: Solve for x
    x = 96,599,413,460.68/487,166.22
  6. Step 6: Final answer
    x = 198,288.41

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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.