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Finding the Fourth Proportional to 112,687.84, 169,067.13 and 67,760.92

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Solution

The fourth proportional to 112,687.84, 169,067.13 and 67,760.92 is: 101,662.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,687.84 : 169,067.13 = 67,760.92 : x
  2. Step 2: Convert to fraction form
    112,687.84/169,067.13 = 67,760.92/x
  3. Step 3: Cross multiply
    112,687.84x = 169,067.13 × 67,760.92
  4. Step 4: Simplify right side
    112,687.84x = 11,456,144,270.56
  5. Step 5: Solve for x
    x = 11,456,144,270.56/112,687.84
  6. Step 6: Final answer
    x = 101,662.65

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1.5x scale

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.