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Finding the Fourth Proportional to 181,249.20, 250,113.24 and 100,672.02

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Solution

The fourth proportional to 181,249.20, 250,113.24 and 100,672.02 is: 138,921.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,249.20 : 250,113.24 = 100,672.02 : x
  2. Step 2: Convert to fraction form
    181,249.20/250,113.24 = 100,672.02/x
  3. Step 3: Cross multiply
    181,249.20x = 250,113.24 × 100,672.02
  4. Step 4: Simplify right side
    181,249.20x = 25,179,405,099.54
  5. Step 5: Solve for x
    x = 25,179,405,099.54/181,249.20
  6. Step 6: Final answer
    x = 138,921.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.