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Finding the Fourth Proportional to 80,382.51, 110,900.61 and 52,093.80

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Solution

The fourth proportional to 80,382.51, 110,900.61 and 52,093.80 is: 71,871.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,382.51 : 110,900.61 = 52,093.80 : x
  2. Step 2: Convert to fraction form
    80,382.51/110,900.61 = 52,093.80/x
  3. Step 3: Cross multiply
    80,382.51x = 110,900.61 × 52,093.80
  4. Step 4: Simplify right side
    80,382.51x = 5,777,234,197.22
  5. Step 5: Solve for x
    x = 5,777,234,197.22/80,382.51
  6. Step 6: Final answer
    x = 71,871.78

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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.