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Finding the Fourth Proportional to 218,363.82, 327,020.84 and 124,585.26

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Solution

The fourth proportional to 218,363.82, 327,020.84 and 124,585.26 is: 186,578.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,363.82 : 327,020.84 = 124,585.26 : x
  2. Step 2: Convert to fraction form
    218,363.82/327,020.84 = 124,585.26/x
  3. Step 3: Cross multiply
    218,363.82x = 327,020.84 × 124,585.26
  4. Step 4: Simplify right side
    218,363.82x = 40,741,976,376.82
  5. Step 5: Solve for x
    x = 40,741,976,376.82/218,363.82
  6. Step 6: Final answer
    x = 186,578.42

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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.