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Finding the Fourth Proportional to 226,865.70, 340,082.55 and 84,672.90

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Solution

The fourth proportional to 226,865.70, 340,082.55 and 84,672.90 is: 126,928.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,865.70 : 340,082.55 = 84,672.90 : x
  2. Step 2: Convert to fraction form
    226,865.70/340,082.55 = 84,672.90/x
  3. Step 3: Cross multiply
    226,865.70x = 340,082.55 × 84,672.90
  4. Step 4: Simplify right side
    226,865.70x = 28,795,775,747.90
  5. Step 5: Solve for x
    x = 28,795,775,747.90/226,865.70
  6. Step 6: Final answer
    x = 126,928.73

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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.