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Finding the Fourth Proportional to 488,725.20, 732,553.20 and 173,019.60

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Solution

The fourth proportional to 488,725.20, 732,553.20 and 173,019.60 is: 259,340.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,725.20 : 732,553.20 = 173,019.60 : x
  2. Step 2: Convert to fraction form
    488,725.20/732,553.20 = 173,019.60/x
  3. Step 3: Cross multiply
    488,725.20x = 732,553.20 × 173,019.60
  4. Step 4: Simplify right side
    488,725.20x = 126,746,061,642.72
  5. Step 5: Solve for x
    x = 126,746,061,642.72/488,725.20
  6. Step 6: Final answer
    x = 259,340.14

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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.