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Finding the Fourth Proportional to 218,674.28, 328,020.06 and 60,916.52

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Solution

The fourth proportional to 218,674.28, 328,020.06 and 60,916.52 is: 91,377.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,674.28 : 328,020.06 = 60,916.52 : x
  2. Step 2: Convert to fraction form
    218,674.28/328,020.06 = 60,916.52/x
  3. Step 3: Cross multiply
    218,674.28x = 328,020.06 × 60,916.52
  4. Step 4: Simplify right side
    218,674.28x = 19,981,840,545.39
  5. Step 5: Solve for x
    x = 19,981,840,545.39/218,674.28
  6. Step 6: Final answer
    x = 91,377.19

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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.