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Finding the Fourth Proportional to 147,213.20, 220,819.80 and 132,006.80

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Solution

The fourth proportional to 147,213.20, 220,819.80 and 132,006.80 is: 198,010.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,213.20 : 220,819.80 = 132,006.80 : x
  2. Step 2: Convert to fraction form
    147,213.20/220,819.80 = 132,006.80/x
  3. Step 3: Cross multiply
    147,213.20x = 220,819.80 × 132,006.80
  4. Step 4: Simplify right side
    147,213.20x = 29,149,715,174.64
  5. Step 5: Solve for x
    x = 29,149,715,174.64/147,213.20
  6. Step 6: Final answer
    x = 198,010.20

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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.