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Finding the Fourth Proportional to 68,593.88, 103,063.08 and 43,644.80

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Solution

The fourth proportional to 68,593.88, 103,063.08 and 43,644.80 is: 65,576.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,593.88 : 103,063.08 = 43,644.80 : x
  2. Step 2: Convert to fraction form
    68,593.88/103,063.08 = 43,644.80/x
  3. Step 3: Cross multiply
    68,593.88x = 103,063.08 × 43,644.80
  4. Step 4: Simplify right side
    68,593.88x = 4,498,167,513.98
  5. Step 5: Solve for x
    x = 4,498,167,513.98/68,593.88
  6. Step 6: Final answer
    x = 65,576.81

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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.