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Finding the Fourth Proportional to 226,531.20, 339,710.40 and 68,707.20

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Solution

The fourth proportional to 226,531.20, 339,710.40 and 68,707.20 is: 103,034.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,531.20 : 339,710.40 = 68,707.20 : x
  2. Step 2: Convert to fraction form
    226,531.20/339,710.40 = 68,707.20/x
  3. Step 3: Cross multiply
    226,531.20x = 339,710.40 × 68,707.20
  4. Step 4: Simplify right side
    226,531.20x = 23,340,550,394.88
  5. Step 5: Solve for x
    x = 23,340,550,394.88/226,531.20
  6. Step 6: Final answer
    x = 103,034.59

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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.