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Finding the Fourth Proportional to 99,481.97, 149,129.15 and 49,514.83

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Solution

The fourth proportional to 99,481.97, 149,129.15 and 49,514.83 is: 74,225.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,481.97 : 149,129.15 = 49,514.83 : x
  2. Step 2: Convert to fraction form
    99,481.97/149,129.15 = 49,514.83/x
  3. Step 3: Cross multiply
    99,481.97x = 149,129.15 × 49,514.83
  4. Step 4: Simplify right side
    99,481.97x = 7,384,104,634.08
  5. Step 5: Solve for x
    x = 7,384,104,634.08/99,481.97
  6. Step 6: Final answer
    x = 74,225.56

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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.