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Finding the Fourth Proportional to 125,481.20, 188,181.84 and 41,221.81

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Solution

The fourth proportional to 125,481.20, 188,181.84 and 41,221.81 is: 61,819.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,481.20 : 188,181.84 = 41,221.81 : x
  2. Step 2: Convert to fraction form
    125,481.20/188,181.84 = 41,221.81/x
  3. Step 3: Cross multiply
    125,481.20x = 188,181.84 × 41,221.81
  4. Step 4: Simplify right side
    125,481.20x = 7,757,195,113.02
  5. Step 5: Solve for x
    x = 7,757,195,113.02/125,481.20
  6. Step 6: Final answer
    x = 61,819.58

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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.