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Finding the Fourth Proportional to 57,939.44, 79,957.56 and 37,809.20

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Solution

The fourth proportional to 57,939.44, 79,957.56 and 37,809.20 is: 52,177.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,939.44 : 79,957.56 = 37,809.20 : x
  2. Step 2: Convert to fraction form
    57,939.44/79,957.56 = 37,809.20/x
  3. Step 3: Cross multiply
    57,939.44x = 79,957.56 × 37,809.20
  4. Step 4: Simplify right side
    57,939.44x = 3,023,131,377.55
  5. Step 5: Solve for x
    x = 3,023,131,377.55/57,939.44
  6. Step 6: Final answer
    x = 52,177.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.