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Finding the Fourth Proportional to 73,231.20, 109,846.80 and 23,310.90

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Solution

The fourth proportional to 73,231.20, 109,846.80 and 23,310.90 is: 34,966.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,231.20 : 109,846.80 = 23,310.90 : x
  2. Step 2: Convert to fraction form
    73,231.20/109,846.80 = 23,310.90/x
  3. Step 3: Cross multiply
    73,231.20x = 109,846.80 × 23,310.90
  4. Step 4: Simplify right side
    73,231.20x = 2,560,627,770.12
  5. Step 5: Solve for x
    x = 2,560,627,770.12/73,231.20
  6. Step 6: Final answer
    x = 34,966.35

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Double scale
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Similar ratio
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1.5x scale

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.