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Finding the Fourth Proportional to 201,234.56, 301,912.14 and 81,229.73

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Solution

The fourth proportional to 201,234.56, 301,912.14 and 81,229.73 is: 121,868.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,234.56 : 301,912.14 = 81,229.73 : x
  2. Step 2: Convert to fraction form
    201,234.56/301,912.14 = 81,229.73/x
  3. Step 3: Cross multiply
    201,234.56x = 301,912.14 × 81,229.73
  4. Step 4: Simplify right side
    201,234.56x = 24,524,241,615.92
  5. Step 5: Solve for x
    x = 24,524,241,615.92/201,234.56
  6. Step 6: Final answer
    x = 121,868.94

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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.