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Finding the Fourth Proportional to 133,694.80, 200,542.20 and 54,865.60

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Solution

The fourth proportional to 133,694.80, 200,542.20 and 54,865.60 is: 82,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,694.80 : 200,542.20 = 54,865.60 : x
  2. Step 2: Convert to fraction form
    133,694.80/200,542.20 = 54,865.60/x
  3. Step 3: Cross multiply
    133,694.80x = 200,542.20 × 54,865.60
  4. Step 4: Simplify right side
    133,694.80x = 11,002,868,128.32
  5. Step 5: Solve for x
    x = 11,002,868,128.32/133,694.80
  6. Step 6: Final answer
    x = 82,298.40

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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.