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Finding the Fourth Proportional to 250,686.29, 375,989.13 and 73,151.70

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Solution

The fourth proportional to 250,686.29, 375,989.13 and 73,151.70 is: 109,715.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,686.29 : 375,989.13 = 73,151.70 : x
  2. Step 2: Convert to fraction form
    250,686.29/375,989.13 = 73,151.70/x
  3. Step 3: Cross multiply
    250,686.29x = 375,989.13 × 73,151.70
  4. Step 4: Simplify right side
    250,686.29x = 27,504,244,041.02
  5. Step 5: Solve for x
    x = 27,504,244,041.02/250,686.29
  6. Step 6: Final answer
    x = 109,715.79

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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.