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Finding the Fourth Proportional to 189,472.52, 261,463.20 and 108,843.32

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Solution

The fourth proportional to 189,472.52, 261,463.20 and 108,843.32 is: 150,198.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,472.52 : 261,463.20 = 108,843.32 : x
  2. Step 2: Convert to fraction form
    189,472.52/261,463.20 = 108,843.32/x
  3. Step 3: Cross multiply
    189,472.52x = 261,463.20 × 108,843.32
  4. Step 4: Simplify right side
    189,472.52x = 28,458,522,745.82
  5. Step 5: Solve for x
    x = 28,458,522,745.82/189,472.52
  6. Step 6: Final answer
    x = 150,198.68

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1.5x scale

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.