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Finding the Fourth Proportional to 487,155.88, 730,734.18 and 132,169.88

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Solution

The fourth proportional to 487,155.88, 730,734.18 and 132,169.88 is: 198,254.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,155.88 : 730,734.18 = 132,169.88 : x
  2. Step 2: Convert to fraction form
    487,155.88/730,734.18 = 132,169.88/x
  3. Step 3: Cross multiply
    487,155.88x = 730,734.18 × 132,169.88
  4. Step 4: Simplify right side
    487,155.88x = 96,581,048,882.50
  5. Step 5: Solve for x
    x = 96,581,048,882.50/487,155.88
  6. Step 6: Final answer
    x = 198,254.92

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1.5x scale

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.