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Finding the Fourth Proportional to 264,213.80, 396,579.90 and 131,244.20

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Solution

The fourth proportional to 264,213.80, 396,579.90 and 131,244.20 is: 196,995.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,213.80 : 396,579.90 = 131,244.20 : x
  2. Step 2: Convert to fraction form
    264,213.80/396,579.90 = 131,244.20/x
  3. Step 3: Cross multiply
    264,213.80x = 396,579.90 × 131,244.20
  4. Step 4: Simplify right side
    264,213.80x = 52,048,811,711.58
  5. Step 5: Solve for x
    x = 52,048,811,711.58/264,213.80
  6. Step 6: Final answer
    x = 196,995.05

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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.