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Finding the Fourth Proportional to 181,940.46, 272,963.32 and 75,304.70

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Solution

The fourth proportional to 181,940.46, 272,963.32 and 75,304.70 is: 112,978.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,940.46 : 272,963.32 = 75,304.70 : x
  2. Step 2: Convert to fraction form
    181,940.46/272,963.32 = 75,304.70/x
  3. Step 3: Cross multiply
    181,940.46x = 272,963.32 × 75,304.70
  4. Step 4: Simplify right side
    181,940.46x = 20,555,420,923.60
  5. Step 5: Solve for x
    x = 20,555,420,923.60/181,940.46
  6. Step 6: Final answer
    x = 112,978.83

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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.