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Finding the Fourth Proportional to 169,472.86, 234,182 and 123,452.40

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Solution

The fourth proportional to 169,472.86, 234,182 and 123,452.40 is: 170,589.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,472.86 : 234,182 = 123,452.40 : x
  2. Step 2: Convert to fraction form
    169,472.86/234,182 = 123,452.40/x
  3. Step 3: Cross multiply
    169,472.86x = 234,182 × 123,452.40
  4. Step 4: Simplify right side
    169,472.86x = 28,910,329,936.80
  5. Step 5: Solve for x
    x = 28,910,329,936.80/169,472.86
  6. Step 6: Final answer
    x = 170,589.73

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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.