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Finding the Fourth Proportional to 226,480.20, 339,633.90 and 68,656.20

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Solution

The fourth proportional to 226,480.20, 339,633.90 and 68,656.20 is: 102,958.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,480.20 : 339,633.90 = 68,656.20 : x
  2. Step 2: Convert to fraction form
    226,480.20/339,633.90 = 68,656.20/x
  3. Step 3: Cross multiply
    226,480.20x = 339,633.90 × 68,656.20
  4. Step 4: Simplify right side
    226,480.20x = 23,317,972,965.18
  5. Step 5: Solve for x
    x = 23,317,972,965.18/226,480.20
  6. Step 6: Final answer
    x = 102,958.11

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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.