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Finding the Fourth Proportional to 218,578.96, 327,869.05 and 60,807.57

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Solution

The fourth proportional to 218,578.96, 327,869.05 and 60,807.57 is: 91,211.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,578.96 : 327,869.05 = 60,807.57 : x
  2. Step 2: Convert to fraction form
    218,578.96/327,869.05 = 60,807.57/x
  3. Step 3: Cross multiply
    218,578.96x = 327,869.05 × 60,807.57
  4. Step 4: Simplify right side
    218,578.96x = 19,936,920,208.71
  5. Step 5: Solve for x
    x = 19,936,920,208.71/218,578.96
  6. Step 6: Final answer
    x = 91,211.52

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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.