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Finding the Fourth Proportional to 188,758.62, 260,493 and 108,201.39

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Solution

The fourth proportional to 188,758.62, 260,493 and 108,201.39 is: 149,321.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,758.62 : 260,493 = 108,201.39 : x
  2. Step 2: Convert to fraction form
    188,758.62/260,493 = 108,201.39/x
  3. Step 3: Cross multiply
    188,758.62x = 260,493 × 108,201.39
  4. Step 4: Simplify right side
    188,758.62x = 28,185,704,685.27
  5. Step 5: Solve for x
    x = 28,185,704,685.27/188,758.62
  6. Step 6: Final answer
    x = 149,321.42

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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.