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Finding the Fourth Proportional to 68,616.92, 102,899.79 and 23,625.56

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Solution

The fourth proportional to 68,616.92, 102,899.79 and 23,625.56 is: 35,429.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,616.92 : 102,899.79 = 23,625.56 : x
  2. Step 2: Convert to fraction form
    68,616.92/102,899.79 = 23,625.56/x
  3. Step 3: Cross multiply
    68,616.92x = 102,899.79 × 23,625.56
  4. Step 4: Simplify right side
    68,616.92x = 2,431,065,419.88
  5. Step 5: Solve for x
    x = 2,431,065,419.88/68,616.92
  6. Step 6: Final answer
    x = 35,429.53

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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.