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Finding the Fourth Proportional to 181,874.50, 272,811.78 and 55,515.44

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Solution

The fourth proportional to 181,874.50, 272,811.78 and 55,515.44 is: 83,273.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,874.50 : 272,811.78 = 55,515.44 : x
  2. Step 2: Convert to fraction form
    181,874.50/272,811.78 = 55,515.44/x
  3. Step 3: Cross multiply
    181,874.50x = 272,811.78 × 55,515.44
  4. Step 4: Simplify right side
    181,874.50x = 15,145,266,685.91
  5. Step 5: Solve for x
    x = 15,145,266,685.91/181,874.50
  6. Step 6: Final answer
    x = 83,273.17

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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.