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Finding the Fourth Proportional to 226,505.72, 339,760.64 and 68,734.18

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Solution

The fourth proportional to 226,505.72, 339,760.64 and 68,734.18 is: 103,101.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,505.72 : 339,760.64 = 68,734.18 : x
  2. Step 2: Convert to fraction form
    226,505.72/339,760.64 = 68,734.18/x
  3. Step 3: Cross multiply
    226,505.72x = 339,760.64 × 68,734.18
  4. Step 4: Simplify right side
    226,505.72x = 23,353,167,793.60
  5. Step 5: Solve for x
    x = 23,353,167,793.60/226,505.72
  6. Step 6: Final answer
    x = 103,101.89

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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.