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Finding the Fourth Proportional to 71,812.38, 107,725.95 and 27,476.43

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Solution

The fourth proportional to 71,812.38, 107,725.95 and 27,476.43 is: 41,217.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,812.38 : 107,725.95 = 27,476.43 : x
  2. Step 2: Convert to fraction form
    71,812.38/107,725.95 = 27,476.43/x
  3. Step 3: Cross multiply
    71,812.38x = 107,725.95 × 27,476.43
  4. Step 4: Simplify right side
    71,812.38x = 2,959,924,120.39
  5. Step 5: Solve for x
    x = 2,959,924,120.39/71,812.38
  6. Step 6: Final answer
    x = 41,217.46

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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.