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Finding the Fourth Proportional to 269,540.85, 404,311.28 and 82,528.05

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Solution

The fourth proportional to 269,540.85, 404,311.28 and 82,528.05 is: 123,792.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,540.85 : 404,311.28 = 82,528.05 : x
  2. Step 2: Convert to fraction form
    269,540.85/404,311.28 = 82,528.05/x
  3. Step 3: Cross multiply
    269,540.85x = 404,311.28 × 82,528.05
  4. Step 4: Simplify right side
    269,540.85x = 33,367,021,118.76
  5. Step 5: Solve for x
    x = 33,367,021,118.76/269,540.85
  6. Step 6: Final answer
    x = 123,792.08

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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.