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Finding the Fourth Proportional to 279,514.26, 419,340.51 and 92,544.66

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Solution

The fourth proportional to 279,514.26, 419,340.51 and 92,544.66 is: 138,839.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,514.26 : 419,340.51 = 92,544.66 : x
  2. Step 2: Convert to fraction form
    279,514.26/419,340.51 = 92,544.66/x
  3. Step 3: Cross multiply
    279,514.26x = 419,340.51 × 92,544.66
  4. Step 4: Simplify right side
    279,514.26x = 38,807,724,922.18
  5. Step 5: Solve for x
    x = 38,807,724,922.18/279,514.26
  6. Step 6: Final answer
    x = 138,839.88

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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.