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Finding the Fourth Proportional to 125,449.45, 188,134.53 and 41,195.72

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Solution

The fourth proportional to 125,449.45, 188,134.53 and 41,195.72 is: 61,780.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,449.45 : 188,134.53 = 41,195.72 : x
  2. Step 2: Convert to fraction form
    125,449.45/188,134.53 = 41,195.72/x
  3. Step 3: Cross multiply
    125,449.45x = 188,134.53 × 41,195.72
  4. Step 4: Simplify right side
    125,449.45x = 7,750,337,736.06
  5. Step 5: Solve for x
    x = 7,750,337,736.06/125,449.45
  6. Step 6: Final answer
    x = 61,780.56

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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.