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Finding the Fourth Proportional to 226,306.80, 339,071.40 and 147,380.40

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Solution

The fourth proportional to 226,306.80, 339,071.40 and 147,380.40 is: 220,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,306.80 : 339,071.40 = 147,380.40 : x
  2. Step 2: Convert to fraction form
    226,306.80/339,071.40 = 147,380.40/x
  3. Step 3: Cross multiply
    226,306.80x = 339,071.40 × 147,380.40
  4. Step 4: Simplify right side
    226,306.80x = 49,972,478,560.56
  5. Step 5: Solve for x
    x = 49,972,478,560.56/226,306.80
  6. Step 6: Final answer
    x = 220,817.40

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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.