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Finding the Fourth Proportional to 99,163.48, 136,847.46 and 54,451.48

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Solution

The fourth proportional to 99,163.48, 136,847.46 and 54,451.48 is: 75,144.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,163.48 : 136,847.46 = 54,451.48 : x
  2. Step 2: Convert to fraction form
    99,163.48/136,847.46 = 54,451.48/x
  3. Step 3: Cross multiply
    99,163.48x = 136,847.46 × 54,451.48
  4. Step 4: Simplify right side
    99,163.48x = 7,451,546,731.24
  5. Step 5: Solve for x
    x = 7,451,546,731.24/99,163.48
  6. Step 6: Final answer
    x = 75,144.06

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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.