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Finding the Fourth Proportional to 133,722.80, 200,535.60 and 44,979.20

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Solution

The fourth proportional to 133,722.80, 200,535.60 and 44,979.20 is: 67,452.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,722.80 : 200,535.60 = 44,979.20 : x
  2. Step 2: Convert to fraction form
    133,722.80/200,535.60 = 44,979.20/x
  3. Step 3: Cross multiply
    133,722.80x = 200,535.60 × 44,979.20
  4. Step 4: Simplify right side
    133,722.80x = 9,019,930,859.52
  5. Step 5: Solve for x
    x = 9,019,930,859.52/133,722.80
  6. Step 6: Final answer
    x = 67,452.45

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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.