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Finding the Fourth Proportional to 218,616.56, 327,924.90 and 168,769.43

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Solution

The fourth proportional to 218,616.56, 327,924.90 and 168,769.43 is: 253,154.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,616.56 : 327,924.90 = 168,769.43 : x
  2. Step 2: Convert to fraction form
    218,616.56/327,924.90 = 168,769.43/x
  3. Step 3: Cross multiply
    218,616.56x = 327,924.90 × 168,769.43
  4. Step 4: Simplify right side
    218,616.56x = 55,343,696,816.18
  5. Step 5: Solve for x
    x = 55,343,696,816.18/218,616.56
  6. Step 6: Final answer
    x = 253,154.19

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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.