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Finding the Fourth Proportional to 120,757.56, 181,078.06 and 50,618.04

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Solution

The fourth proportional to 120,757.56, 181,078.06 and 50,618.04 is: 75,902.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,757.56 : 181,078.06 = 50,618.04 : x
  2. Step 2: Convert to fraction form
    120,757.56/181,078.06 = 50,618.04/x
  3. Step 3: Cross multiply
    120,757.56x = 181,078.06 × 50,618.04
  4. Step 4: Simplify right side
    120,757.56x = 9,165,816,484.20
  5. Step 5: Solve for x
    x = 9,165,816,484.20/120,757.56
  6. Step 6: Final answer
    x = 75,902.63

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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.