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Finding the Fourth Proportional to 68,896.62, 95,101.32 and 40,600.50

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Solution

The fourth proportional to 68,896.62, 95,101.32 and 40,600.50 is: 56,042.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,896.62 : 95,101.32 = 40,600.50 : x
  2. Step 2: Convert to fraction form
    68,896.62/95,101.32 = 40,600.50/x
  3. Step 3: Cross multiply
    68,896.62x = 95,101.32 × 40,600.50
  4. Step 4: Simplify right side
    68,896.62x = 3,861,161,142.66
  5. Step 5: Solve for x
    x = 3,861,161,142.66/68,896.62
  6. Step 6: Final answer
    x = 56,042.82

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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.