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Finding the Fourth Proportional to 83,589.93, 115,255.32 and 68,426.73

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Solution

The fourth proportional to 83,589.93, 115,255.32 and 68,426.73 is: 94,348.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,589.93 : 115,255.32 = 68,426.73 : x
  2. Step 2: Convert to fraction form
    83,589.93/115,255.32 = 68,426.73/x
  3. Step 3: Cross multiply
    83,589.93x = 115,255.32 × 68,426.73
  4. Step 4: Simplify right side
    83,589.93x = 7,886,544,662.70
  5. Step 5: Solve for x
    x = 7,886,544,662.70/83,589.93
  6. Step 6: Final answer
    x = 94,348.02

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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.