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Finding the Fourth Proportional to 335,381.32, 503,067.48 and 82,664.80

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Solution

The fourth proportional to 335,381.32, 503,067.48 and 82,664.80 is: 123,996.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,381.32 : 503,067.48 = 82,664.80 : x
  2. Step 2: Convert to fraction form
    335,381.32/503,067.48 = 82,664.80/x
  3. Step 3: Cross multiply
    335,381.32x = 503,067.48 × 82,664.80
  4. Step 4: Simplify right side
    335,381.32x = 41,585,972,620.70
  5. Step 5: Solve for x
    x = 41,585,972,620.70/335,381.32
  6. Step 6: Final answer
    x = 123,996.09

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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.