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Finding the Fourth Proportional to 181,179.86, 271,791.38 and 87,618.38

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Solution

The fourth proportional to 181,179.86, 271,791.38 and 87,618.38 is: 131,438.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,179.86 : 271,791.38 = 87,618.38 : x
  2. Step 2: Convert to fraction form
    181,179.86/271,791.38 = 87,618.38/x
  3. Step 3: Cross multiply
    181,179.86x = 271,791.38 × 87,618.38
  4. Step 4: Simplify right side
    181,179.86x = 23,813,919,273.65
  5. Step 5: Solve for x
    x = 23,813,919,273.65/181,179.86
  6. Step 6: Final answer
    x = 131,438.01

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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.