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Finding the Fourth Proportional to 486,820.92, 730,147.14 and 131,752.02

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Solution

The fourth proportional to 486,820.92, 730,147.14 and 131,752.02 is: 197,605.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,820.92 : 730,147.14 = 131,752.02 : x
  2. Step 2: Convert to fraction form
    486,820.92/730,147.14 = 131,752.02/x
  3. Step 3: Cross multiply
    486,820.92x = 730,147.14 × 131,752.02
  4. Step 4: Simplify right side
    486,820.92x = 96,198,360,592.22
  5. Step 5: Solve for x
    x = 96,198,360,592.22/486,820.92
  6. Step 6: Final answer
    x = 197,605.23

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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.