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Finding the Fourth Proportional to 83,754.28, 125,648.46 and 75,389.44

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Solution

The fourth proportional to 83,754.28, 125,648.46 and 75,389.44 is: 113,099.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,754.28 : 125,648.46 = 75,389.44 : x
  2. Step 2: Convert to fraction form
    83,754.28/125,648.46 = 75,389.44/x
  3. Step 3: Cross multiply
    83,754.28x = 125,648.46 × 75,389.44
  4. Step 4: Simplify right side
    83,754.28x = 9,472,567,036.26
  5. Step 5: Solve for x
    x = 9,472,567,036.26/83,754.28
  6. Step 6: Final answer
    x = 113,099.50

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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.