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Finding the Fourth Proportional to 71,801.27, 107,467.12 and 52,820.86

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Solution

The fourth proportional to 71,801.27, 107,467.12 and 52,820.86 is: 79,058.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,801.27 : 107,467.12 = 52,820.86 : x
  2. Step 2: Convert to fraction form
    71,801.27/107,467.12 = 52,820.86/x
  3. Step 3: Cross multiply
    71,801.27x = 107,467.12 × 52,820.86
  4. Step 4: Simplify right side
    71,801.27x = 5,676,504,898.68
  5. Step 5: Solve for x
    x = 5,676,504,898.68/71,801.27
  6. Step 6: Final answer
    x = 79,058.56

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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.