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Finding the Fourth Proportional to 226,513.40, 339,770.10 and 68,749.70

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Solution

The fourth proportional to 226,513.40, 339,770.10 and 68,749.70 is: 103,124.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,513.40 : 339,770.10 = 68,749.70 : x
  2. Step 2: Convert to fraction form
    226,513.40/339,770.10 = 68,749.70/x
  3. Step 3: Cross multiply
    226,513.40x = 339,770.10 × 68,749.70
  4. Step 4: Simplify right side
    226,513.40x = 23,359,092,443.97
  5. Step 5: Solve for x
    x = 23,359,092,443.97/226,513.40
  6. Step 6: Final answer
    x = 103,124.55

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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.