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Finding the Fourth Proportional to 59,620.82, 89,236.51 and 43,821.68

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Solution

The fourth proportional to 59,620.82, 89,236.51 and 43,821.68 is: 65,589.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,620.82 : 89,236.51 = 43,821.68 : x
  2. Step 2: Convert to fraction form
    59,620.82/89,236.51 = 43,821.68/x
  3. Step 3: Cross multiply
    59,620.82x = 89,236.51 × 43,821.68
  4. Step 4: Simplify right side
    59,620.82x = 3,910,493,229.80
  5. Step 5: Solve for x
    x = 3,910,493,229.80/59,620.82
  6. Step 6: Final answer
    x = 65,589.40

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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.