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Finding the Fourth Proportional to 226,540.89, 339,599.11 and 76,676.31

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Solution

The fourth proportional to 226,540.89, 339,599.11 and 76,676.31 is: 114,942.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,540.89 : 339,599.11 = 76,676.31 : x
  2. Step 2: Convert to fraction form
    226,540.89/339,599.11 = 76,676.31/x
  3. Step 3: Cross multiply
    226,540.89x = 339,599.11 × 76,676.31
  4. Step 4: Simplify right side
    226,540.89x = 26,039,206,634.08
  5. Step 5: Solve for x
    x = 26,039,206,634.08/226,540.89
  6. Step 6: Final answer
    x = 114,942.63

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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.