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Finding the Fourth Proportional to 68,372.76, 94,359.15 and 38,163.98

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Solution

The fourth proportional to 68,372.76, 94,359.15 and 38,163.98 is: 52,668.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,372.76 : 94,359.15 = 38,163.98 : x
  2. Step 2: Convert to fraction form
    68,372.76/94,359.15 = 38,163.98/x
  3. Step 3: Cross multiply
    68,372.76x = 94,359.15 × 38,163.98
  4. Step 4: Simplify right side
    68,372.76x = 3,601,120,949.31
  5. Step 5: Solve for x
    x = 3,601,120,949.31/68,372.76
  6. Step 6: Final answer
    x = 52,668.94

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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.