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Finding the Fourth Proportional to 216,761.43, 325,173.29 and 67,013.39

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Solution

The fourth proportional to 216,761.43, 325,173.29 and 67,013.39 is: 100,529.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,761.43 : 325,173.29 = 67,013.39 : x
  2. Step 2: Convert to fraction form
    216,761.43/325,173.29 = 67,013.39/x
  3. Step 3: Cross multiply
    216,761.43x = 325,173.29 × 67,013.39
  4. Step 4: Simplify right side
    216,761.43x = 21,790,965,145.75
  5. Step 5: Solve for x
    x = 21,790,965,145.75/216,761.43
  6. Step 6: Final answer
    x = 100,529.72

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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.