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Finding the Fourth Proportional to 226,598.91, 339,910.79 and 74,789.79

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Solution

The fourth proportional to 226,598.91, 339,910.79 and 74,789.79 is: 112,188.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,598.91 : 339,910.79 = 74,789.79 : x
  2. Step 2: Convert to fraction form
    226,598.91/339,910.79 = 74,789.79/x
  3. Step 3: Cross multiply
    226,598.91x = 339,910.79 × 74,789.79
  4. Step 4: Simplify right side
    226,598.91x = 25,421,856,228.89
  5. Step 5: Solve for x
    x = 25,421,856,228.89/226,598.91
  6. Step 6: Final answer
    x = 112,188.78

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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.