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Finding the Fourth Proportional to 269,862.20, 404,469.30 and 112,009.40

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Solution

The fourth proportional to 269,862.20, 404,469.30 and 112,009.40 is: 167,879.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,862.20 : 404,469.30 = 112,009.40 : x
  2. Step 2: Convert to fraction form
    269,862.20/404,469.30 = 112,009.40/x
  3. Step 3: Cross multiply
    269,862.20x = 404,469.30 × 112,009.40
  4. Step 4: Simplify right side
    269,862.20x = 45,304,363,611.42
  5. Step 5: Solve for x
    x = 45,304,363,611.42/269,862.20
  6. Step 6: Final answer
    x = 167,879.62

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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.