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Finding the Fourth Proportional to 73,226.20, 109,839.30 and 43,701.70

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Solution

The fourth proportional to 73,226.20, 109,839.30 and 43,701.70 is: 65,552.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,226.20 : 109,839.30 = 43,701.70 : x
  2. Step 2: Convert to fraction form
    73,226.20/109,839.30 = 43,701.70/x
  3. Step 3: Cross multiply
    73,226.20x = 109,839.30 × 43,701.70
  4. Step 4: Simplify right side
    73,226.20x = 4,800,164,136.81
  5. Step 5: Solve for x
    x = 4,800,164,136.81/73,226.20
  6. Step 6: Final answer
    x = 65,552.55

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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.