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Finding the Fourth Proportional to 77,191.92, 106,517.48 and 43,198.68

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Solution

The fourth proportional to 77,191.92, 106,517.48 and 43,198.68 is: 59,610.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,191.92 : 106,517.48 = 43,198.68 : x
  2. Step 2: Convert to fraction form
    77,191.92/106,517.48 = 43,198.68/x
  3. Step 3: Cross multiply
    77,191.92x = 106,517.48 × 43,198.68
  4. Step 4: Simplify right side
    77,191.92x = 4,601,414,532.93
  5. Step 5: Solve for x
    x = 4,601,414,532.93/77,191.92
  6. Step 6: Final answer
    x = 59,610.05

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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.