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Finding the Fourth Proportional to 68,856.44, 103,024.02 and 40,791.56

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Solution

The fourth proportional to 68,856.44, 103,024.02 and 40,791.56 is: 61,032.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,856.44 : 103,024.02 = 40,791.56 : x
  2. Step 2: Convert to fraction form
    68,856.44/103,024.02 = 40,791.56/x
  3. Step 3: Cross multiply
    68,856.44x = 103,024.02 × 40,791.56
  4. Step 4: Simplify right side
    68,856.44x = 4,202,510,493.27
  5. Step 5: Solve for x
    x = 4,202,510,493.27/68,856.44
  6. Step 6: Final answer
    x = 61,032.93

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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.