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Finding the Fourth Proportional to 68,725.72, 103,101.54 and 27,175.96

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Solution

The fourth proportional to 68,725.72, 103,101.54 and 27,175.96 is: 40,769.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,725.72 : 103,101.54 = 27,175.96 : x
  2. Step 2: Convert to fraction form
    68,725.72/103,101.54 = 27,175.96/x
  3. Step 3: Cross multiply
    68,725.72x = 103,101.54 × 27,175.96
  4. Step 4: Simplify right side
    68,725.72x = 2,801,883,326.98
  5. Step 5: Solve for x
    x = 2,801,883,326.98/68,725.72
  6. Step 6: Final answer
    x = 40,769.06

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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.