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Finding the Fourth Proportional to 71,579.21, 107,332.10 and 37,863.43

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Solution

The fourth proportional to 71,579.21, 107,332.10 and 37,863.43 is: 56,775.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,579.21 : 107,332.10 = 37,863.43 : x
  2. Step 2: Convert to fraction form
    71,579.21/107,332.10 = 37,863.43/x
  3. Step 3: Cross multiply
    71,579.21x = 107,332.10 × 37,863.43
  4. Step 4: Simplify right side
    71,579.21x = 4,063,961,352.43
  5. Step 5: Solve for x
    x = 4,063,961,352.43/71,579.21
  6. Step 6: Final answer
    x = 56,775.73

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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.