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Finding the Fourth Proportional to 73,049.55, 109,532.07 and 28,624.29

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Solution

The fourth proportional to 73,049.55, 109,532.07 and 28,624.29 is: 42,919.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,049.55 : 109,532.07 = 28,624.29 : x
  2. Step 2: Convert to fraction form
    73,049.55/109,532.07 = 28,624.29/x
  3. Step 3: Cross multiply
    73,049.55x = 109,532.07 × 28,624.29
  4. Step 4: Simplify right side
    73,049.55x = 3,135,277,735.98
  5. Step 5: Solve for x
    x = 3,135,277,735.98/73,049.55
  6. Step 6: Final answer
    x = 42,919.88

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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.