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Finding the Fourth Proportional to 173,720.18, 260,819.42 and 88,388.70

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Solution

The fourth proportional to 173,720.18, 260,819.42 and 88,388.70 is: 132,704.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,720.18 : 260,819.42 = 88,388.70 : x
  2. Step 2: Convert to fraction form
    173,720.18/260,819.42 = 88,388.70/x
  3. Step 3: Cross multiply
    173,720.18x = 260,819.42 × 88,388.70
  4. Step 4: Simplify right side
    173,720.18x = 23,053,489,026.61
  5. Step 5: Solve for x
    x = 23,053,489,026.61/173,720.18
  6. Step 6: Final answer
    x = 132,704.73

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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.