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Finding the Fourth Proportional to 71,372.80, 107,060.91 and 23,988.58

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Solution

The fourth proportional to 71,372.80, 107,060.91 and 23,988.58 is: 35,983.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,372.80 : 107,060.91 = 23,988.58 : x
  2. Step 2: Convert to fraction form
    71,372.80/107,060.91 = 23,988.58/x
  3. Step 3: Cross multiply
    71,372.80x = 107,060.91 × 23,988.58
  4. Step 4: Simplify right side
    71,372.80x = 2,568,239,204.41
  5. Step 5: Solve for x
    x = 2,568,239,204.41/71,372.80
  6. Step 6: Final answer
    x = 35,983.44

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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.