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Finding the Fourth Proportional to 80,574.60, 120,905.10 and 33,832.20

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Solution

The fourth proportional to 80,574.60, 120,905.10 and 33,832.20 is: 50,766.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,574.60 : 120,905.10 = 33,832.20 : x
  2. Step 2: Convert to fraction form
    80,574.60/120,905.10 = 33,832.20/x
  3. Step 3: Cross multiply
    80,574.60x = 120,905.10 × 33,832.20
  4. Step 4: Simplify right side
    80,574.60x = 4,090,485,524.22
  5. Step 5: Solve for x
    x = 4,090,485,524.22/80,574.60
  6. Step 6: Final answer
    x = 50,766.44

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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.