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Finding the Fourth Proportional to 269,872.60, 404,808.90 and 82,859.80

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Solution

The fourth proportional to 269,872.60, 404,808.90 and 82,859.80 is: 124,289.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,872.60 : 404,808.90 = 82,859.80 : x
  2. Step 2: Convert to fraction form
    269,872.60/404,808.90 = 82,859.80/x
  3. Step 3: Cross multiply
    269,872.60x = 404,808.90 × 82,859.80
  4. Step 4: Simplify right side
    269,872.60x = 33,542,384,492.22
  5. Step 5: Solve for x
    x = 33,542,384,492.22/269,872.60
  6. Step 6: Final answer
    x = 124,289.70

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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.