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Finding the Fourth Proportional to 226,691.20, 340,650.60 and 121,585.60

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Solution

The fourth proportional to 226,691.20, 340,650.60 and 121,585.60 is: 182,707.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,691.20 : 340,650.60 = 121,585.60 : x
  2. Step 2: Convert to fraction form
    226,691.20/340,650.60 = 121,585.60/x
  3. Step 3: Cross multiply
    226,691.20x = 340,650.60 × 121,585.60
  4. Step 4: Simplify right side
    226,691.20x = 41,418,207,591.36
  5. Step 5: Solve for x
    x = 41,418,207,591.36/226,691.20
  6. Step 6: Final answer
    x = 182,707.61

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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.