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Finding the Fourth Proportional to 71,857.62, 99,163.44 and 41,660.46

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Solution

The fourth proportional to 71,857.62, 99,163.44 and 41,660.46 is: 57,491.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,857.62 : 99,163.44 = 41,660.46 : x
  2. Step 2: Convert to fraction form
    71,857.62/99,163.44 = 41,660.46/x
  3. Step 3: Cross multiply
    71,857.62x = 99,163.44 × 41,660.46
  4. Step 4: Simplify right side
    71,857.62x = 4,131,194,525.58
  5. Step 5: Solve for x
    x = 4,131,194,525.58/71,857.62
  6. Step 6: Final answer
    x = 57,491.39

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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.