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Finding the Fourth Proportional to 80,489.48, 111,069.92 and 44,676.67

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Solution

The fourth proportional to 80,489.48, 111,069.92 and 44,676.67 is: 61,650.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,489.48 : 111,069.92 = 44,676.67 : x
  2. Step 2: Convert to fraction form
    80,489.48/111,069.92 = 44,676.67/x
  3. Step 3: Cross multiply
    80,489.48x = 111,069.92 × 44,676.67
  4. Step 4: Simplify right side
    80,489.48x = 4,962,233,986.02
  5. Step 5: Solve for x
    x = 4,962,233,986.02/80,489.48
  6. Step 6: Final answer
    x = 61,650.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.