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Finding the Fourth Proportional to 119,791.19, 179,514.51 and 82,393.49

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Solution

The fourth proportional to 119,791.19, 179,514.51 and 82,393.49 is: 123,471.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,791.19 : 179,514.51 = 82,393.49 : x
  2. Step 2: Convert to fraction form
    119,791.19/179,514.51 = 82,393.49/x
  3. Step 3: Cross multiply
    119,791.19x = 179,514.51 × 82,393.49
  4. Step 4: Simplify right side
    119,791.19x = 14,790,826,984.54
  5. Step 5: Solve for x
    x = 14,790,826,984.54/119,791.19
  6. Step 6: Final answer
    x = 123,471.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.