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Finding the Fourth Proportional to 417,195.72, 625,517.01 and 150,921.18

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Solution

The fourth proportional to 417,195.72, 625,517.01 and 150,921.18 is: 226,281.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,195.72 : 625,517.01 = 150,921.18 : x
  2. Step 2: Convert to fraction form
    417,195.72/625,517.01 = 150,921.18/x
  3. Step 3: Cross multiply
    417,195.72x = 625,517.01 × 150,921.18
  4. Step 4: Simplify right side
    417,195.72x = 94,403,765,259.27
  5. Step 5: Solve for x
    x = 94,403,765,259.27/417,195.72
  6. Step 6: Final answer
    x = 226,281.72

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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.