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Finding the Fourth Proportional to 202,221.20, 303,331.80 and 61,961.60

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Solution

The fourth proportional to 202,221.20, 303,331.80 and 61,961.60 is: 92,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,221.20 : 303,331.80 = 61,961.60 : x
  2. Step 2: Convert to fraction form
    202,221.20/303,331.80 = 61,961.60/x
  3. Step 3: Cross multiply
    202,221.20x = 303,331.80 × 61,961.60
  4. Step 4: Simplify right side
    202,221.20x = 18,794,923,658.88
  5. Step 5: Solve for x
    x = 18,794,923,658.88/202,221.20
  6. Step 6: Final answer
    x = 92,942.40

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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.