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Finding the Fourth Proportional to 269,761.70, 404,642.55 and 112,103.30

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Solution

The fourth proportional to 269,761.70, 404,642.55 and 112,103.30 is: 168,154.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,761.70 : 404,642.55 = 112,103.30 : x
  2. Step 2: Convert to fraction form
    269,761.70/404,642.55 = 112,103.30/x
  3. Step 3: Cross multiply
    269,761.70x = 404,642.55 × 112,103.30
  4. Step 4: Simplify right side
    269,761.70x = 45,361,765,175.42
  5. Step 5: Solve for x
    x = 45,361,765,175.42/269,761.70
  6. Step 6: Final answer
    x = 168,154.95

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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.