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Finding the Fourth Proportional to 80,371.44, 110,912.49 and 48,534.39

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Solution

The fourth proportional to 80,371.44, 110,912.49 and 48,534.39 is: 66,977.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,371.44 : 110,912.49 = 48,534.39 : x
  2. Step 2: Convert to fraction form
    80,371.44/110,912.49 = 48,534.39/x
  3. Step 3: Cross multiply
    80,371.44x = 110,912.49 × 48,534.39
  4. Step 4: Simplify right side
    80,371.44x = 5,383,070,045.53
  5. Step 5: Solve for x
    x = 5,383,070,045.53/80,371.44
  6. Step 6: Final answer
    x = 66,977.40

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1.5x scale

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.