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Finding the Fourth Proportional to 250,177.97, 375,287.61 and 81,694.55

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Solution

The fourth proportional to 250,177.97, 375,287.61 and 81,694.55 is: 122,548.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,177.97 : 375,287.61 = 81,694.55 : x
  2. Step 2: Convert to fraction form
    250,177.97/375,287.61 = 81,694.55/x
  3. Step 3: Cross multiply
    250,177.97x = 375,287.61 × 81,694.55
  4. Step 4: Simplify right side
    250,177.97x = 30,658,952,419.53
  5. Step 5: Solve for x
    x = 30,658,952,419.53/250,177.97
  6. Step 6: Final answer
    x = 122,548.57

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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.