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Finding the Fourth Proportional to 125,691.66, 188,674.11 and 50,863.32

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Solution

The fourth proportional to 125,691.66, 188,674.11 and 50,863.32 is: 76,350.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,691.66 : 188,674.11 = 50,863.32 : x
  2. Step 2: Convert to fraction form
    125,691.66/188,674.11 = 50,863.32/x
  3. Step 3: Cross multiply
    125,691.66x = 188,674.11 × 50,863.32
  4. Step 4: Simplify right side
    125,691.66x = 9,596,591,632.65
  5. Step 5: Solve for x
    x = 9,596,591,632.65/125,691.66
  6. Step 6: Final answer
    x = 76,350.27

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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.