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Finding the Fourth Proportional to 67,257.78, 100,092.68 and 65,015.43

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Solution

The fourth proportional to 67,257.78, 100,092.68 and 65,015.43 is: 96,755.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,257.78 : 100,092.68 = 65,015.43 : x
  2. Step 2: Convert to fraction form
    67,257.78/100,092.68 = 65,015.43/x
  3. Step 3: Cross multiply
    67,257.78x = 100,092.68 × 65,015.43
  4. Step 4: Simplify right side
    67,257.78x = 6,507,568,304.98
  5. Step 5: Solve for x
    x = 6,507,568,304.98/67,257.78
  6. Step 6: Final answer
    x = 96,755.62

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1.5x scale

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.