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Finding the Fourth Proportional to 351,574.80, 527,278.20 and 151,785.86

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Solution

The fourth proportional to 351,574.80, 527,278.20 and 151,785.86 is: 227,642.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,574.80 : 527,278.20 = 151,785.86 : x
  2. Step 2: Convert to fraction form
    351,574.80/527,278.20 = 151,785.86/x
  3. Step 3: Cross multiply
    351,574.80x = 527,278.20 × 151,785.86
  4. Step 4: Simplify right side
    351,574.80x = 80,033,375,046.25
  5. Step 5: Solve for x
    x = 80,033,375,046.25/351,574.80
  6. Step 6: Final answer
    x = 227,642.52

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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.