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Finding the Fourth Proportional to 99,846.92, 137,786.11 and 54,522.56

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Solution

The fourth proportional to 99,846.92, 137,786.11 and 54,522.56 is: 75,239.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,846.92 : 137,786.11 = 54,522.56 : x
  2. Step 2: Convert to fraction form
    99,846.92/137,786.11 = 54,522.56/x
  3. Step 3: Cross multiply
    99,846.92x = 137,786.11 × 54,522.56
  4. Step 4: Simplify right side
    99,846.92x = 7,512,451,657.80
  5. Step 5: Solve for x
    x = 7,512,451,657.80/99,846.92
  6. Step 6: Final answer
    x = 75,239.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.