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Finding the Fourth Proportional to 417,228.48, 625,891.58 and 132,819.38

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Solution

The fourth proportional to 417,228.48, 625,891.58 and 132,819.38 is: 199,244.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,228.48 : 625,891.58 = 132,819.38 : x
  2. Step 2: Convert to fraction form
    417,228.48/625,891.58 = 132,819.38/x
  3. Step 3: Cross multiply
    417,228.48x = 625,891.58 × 132,819.38
  4. Step 4: Simplify right side
    417,228.48x = 83,130,527,809.27
  5. Step 5: Solve for x
    x = 83,130,527,809.27/417,228.48
  6. Step 6: Final answer
    x = 199,244.61

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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.