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Finding the Fourth Proportional to 180,621.40, 270,672.90 and 132,863.80

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Solution

The fourth proportional to 180,621.40, 270,672.90 and 132,863.80 is: 199,105.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,621.40 : 270,672.90 = 132,863.80 : x
  2. Step 2: Convert to fraction form
    180,621.40/270,672.90 = 132,863.80/x
  3. Step 3: Cross multiply
    180,621.40x = 270,672.90 × 132,863.80
  4. Step 4: Simplify right side
    180,621.40x = 35,962,630,051.02
  5. Step 5: Solve for x
    x = 35,962,630,051.02/180,621.40
  6. Step 6: Final answer
    x = 199,105.03

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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.