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Finding the Fourth Proportional to 68,616.77, 102,791.94 and 50,572.19

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Solution

The fourth proportional to 68,616.77, 102,791.94 and 50,572.19 is: 75,760.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,616.77 : 102,791.94 = 50,572.19 : x
  2. Step 2: Convert to fraction form
    68,616.77/102,791.94 = 50,572.19/x
  3. Step 3: Cross multiply
    68,616.77x = 102,791.94 × 50,572.19
  4. Step 4: Simplify right side
    68,616.77x = 5,198,413,006.19
  5. Step 5: Solve for x
    x = 5,198,413,006.19/68,616.77
  6. Step 6: Final answer
    x = 75,760.10

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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.