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Finding the Fourth Proportional to 80,563.94, 120,858.87 and 33,830.18

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Solution

The fourth proportional to 80,563.94, 120,858.87 and 33,830.18 is: 50,750.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,563.94 : 120,858.87 = 33,830.18 : x
  2. Step 2: Convert to fraction form
    80,563.94/120,858.87 = 33,830.18/x
  3. Step 3: Cross multiply
    80,563.94x = 120,858.87 × 33,830.18
  4. Step 4: Simplify right side
    80,563.94x = 4,088,677,326.70
  5. Step 5: Solve for x
    x = 4,088,677,326.70/80,563.94
  6. Step 6: Final answer
    x = 50,750.71

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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.