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Finding the Fourth Proportional to 226,521.18, 339,782.85 and 68,751

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Solution

The fourth proportional to 226,521.18, 339,782.85 and 68,751 is: 103,126.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,521.18 : 339,782.85 = 68,751 : x
  2. Step 2: Convert to fraction form
    226,521.18/339,782.85 = 68,751/x
  3. Step 3: Cross multiply
    226,521.18x = 339,782.85 × 68,751
  4. Step 4: Simplify right side
    226,521.18x = 23,360,410,720.35
  5. Step 5: Solve for x
    x = 23,360,410,720.35/226,521.18
  6. Step 6: Final answer
    x = 103,126.83

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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.