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Finding the Fourth Proportional to 101,324.87, 151,964.19 and 38,151.65

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Solution

The fourth proportional to 101,324.87, 151,964.19 and 38,151.65 is: 57,218.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,324.87 : 151,964.19 = 38,151.65 : x
  2. Step 2: Convert to fraction form
    101,324.87/151,964.19 = 38,151.65/x
  3. Step 3: Cross multiply
    101,324.87x = 151,964.19 × 38,151.65
  4. Step 4: Simplify right side
    101,324.87x = 5,797,684,589.41
  5. Step 5: Solve for x
    x = 5,797,684,589.41/101,324.87
  6. Step 6: Final answer
    x = 57,218.77

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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.