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Finding the Fourth Proportional to 68,736.76, 103,040.49 and 37,099.41

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Solution

The fourth proportional to 68,736.76, 103,040.49 and 37,099.41 is: 55,614.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,736.76 : 103,040.49 = 37,099.41 : x
  2. Step 2: Convert to fraction form
    68,736.76/103,040.49 = 37,099.41/x
  3. Step 3: Cross multiply
    68,736.76x = 103,040.49 × 37,099.41
  4. Step 4: Simplify right side
    68,736.76x = 3,822,741,385.11
  5. Step 5: Solve for x
    x = 3,822,741,385.11/68,736.76
  6. Step 6: Final answer
    x = 55,614.22

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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.