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Finding the Fourth Proportional to 50,789.64, 75,648.20 and 48,122.43

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Solution

The fourth proportional to 50,789.64, 75,648.20 and 48,122.43 is: 71,675.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,789.64 : 75,648.20 = 48,122.43 : x
  2. Step 2: Convert to fraction form
    50,789.64/75,648.20 = 48,122.43/x
  3. Step 3: Cross multiply
    50,789.64x = 75,648.20 × 48,122.43
  4. Step 4: Simplify right side
    50,789.64x = 3,640,375,209.13
  5. Step 5: Solve for x
    x = 3,640,375,209.13/50,789.64
  6. Step 6: Final answer
    x = 71,675.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.