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Finding the Fourth Proportional to 226,471.80, 339,902.10 and 100,306.20

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Solution

The fourth proportional to 226,471.80, 339,902.10 and 100,306.20 is: 150,545.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,471.80 : 339,902.10 = 100,306.20 : x
  2. Step 2: Convert to fraction form
    226,471.80/339,902.10 = 100,306.20/x
  3. Step 3: Cross multiply
    226,471.80x = 339,902.10 × 100,306.20
  4. Step 4: Simplify right side
    226,471.80x = 34,094,288,023.02
  5. Step 5: Solve for x
    x = 34,094,288,023.02/226,471.80
  6. Step 6: Final answer
    x = 150,545.40

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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.