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Finding the Fourth Proportional to 139,568.82, 209,273.94 and 95,249.26

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Solution

The fourth proportional to 139,568.82, 209,273.94 and 95,249.26 is: 142,819.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,568.82 : 209,273.94 = 95,249.26 : x
  2. Step 2: Convert to fraction form
    139,568.82/209,273.94 = 95,249.26/x
  3. Step 3: Cross multiply
    139,568.82x = 209,273.94 × 95,249.26
  4. Step 4: Simplify right side
    139,568.82x = 19,933,187,922.28
  5. Step 5: Solve for x
    x = 19,933,187,922.28/139,568.82
  6. Step 6: Final answer
    x = 142,819.78

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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.