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Finding the Fourth Proportional to 417,228.62, 625,869.35 and 161,183.30

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Solution

The fourth proportional to 417,228.62, 625,869.35 and 161,183.30 is: 241,785.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,228.62 : 625,869.35 = 161,183.30 : x
  2. Step 2: Convert to fraction form
    417,228.62/625,869.35 = 161,183.30/x
  3. Step 3: Cross multiply
    417,228.62x = 625,869.35 × 161,183.30
  4. Step 4: Simplify right side
    417,228.62x = 100,879,687,201.86
  5. Step 5: Solve for x
    x = 100,879,687,201.86/417,228.62
  6. Step 6: Final answer
    x = 241,785.16

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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.