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Finding the Fourth Proportional to 99,944.67, 149,958.56 and 43,755.85

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Solution

The fourth proportional to 99,944.67, 149,958.56 and 43,755.85 is: 65,651.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,944.67 : 149,958.56 = 43,755.85 : x
  2. Step 2: Convert to fraction form
    99,944.67/149,958.56 = 43,755.85/x
  3. Step 3: Cross multiply
    99,944.67x = 149,958.56 × 43,755.85
  4. Step 4: Simplify right side
    99,944.67x = 6,561,564,257.58
  5. Step 5: Solve for x
    x = 6,561,564,257.58/99,944.67
  6. Step 6: Final answer
    x = 65,651.97

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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.