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Finding the Fourth Proportional to 68,172.73, 94,052.92 and 68,067.48

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Solution

The fourth proportional to 68,172.73, 94,052.92 and 68,067.48 is: 93,907.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,172.73 : 94,052.92 = 68,067.48 : x
  2. Step 2: Convert to fraction form
    68,172.73/94,052.92 = 68,067.48/x
  3. Step 3: Cross multiply
    68,172.73x = 94,052.92 × 68,067.48
  4. Step 4: Simplify right side
    68,172.73x = 6,401,945,251.04
  5. Step 5: Solve for x
    x = 6,401,945,251.04/68,172.73
  6. Step 6: Final answer
    x = 93,907.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.