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Finding the Fourth Proportional to 226,687.68, 339,809.85 and 84,428.73

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Solution

The fourth proportional to 226,687.68, 339,809.85 and 84,428.73 is: 126,560.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,687.68 : 339,809.85 = 84,428.73 : x
  2. Step 2: Convert to fraction form
    226,687.68/339,809.85 = 84,428.73/x
  3. Step 3: Cross multiply
    226,687.68x = 339,809.85 × 84,428.73
  4. Step 4: Simplify right side
    226,687.68x = 28,689,714,076.99
  5. Step 5: Solve for x
    x = 28,689,714,076.99/226,687.68
  6. Step 6: Final answer
    x = 126,560.54

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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.