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Finding the Fourth Proportional to 220,834.20, 331,251.30 and 146,038.80

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Solution

The fourth proportional to 220,834.20, 331,251.30 and 146,038.80 is: 219,058.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,834.20 : 331,251.30 = 146,038.80 : x
  2. Step 2: Convert to fraction form
    220,834.20/331,251.30 = 146,038.80/x
  3. Step 3: Cross multiply
    220,834.20x = 331,251.30 × 146,038.80
  4. Step 4: Simplify right side
    220,834.20x = 48,375,542,350.44
  5. Step 5: Solve for x
    x = 48,375,542,350.44/220,834.20
  6. Step 6: Final answer
    x = 219,058.20

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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.