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Finding the Fourth Proportional to 180,620.20, 270,930.30 and 117,634.60

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Solution

The fourth proportional to 180,620.20, 270,930.30 and 117,634.60 is: 176,451.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,620.20 : 270,930.30 = 117,634.60 : x
  2. Step 2: Convert to fraction form
    180,620.20/270,930.30 = 117,634.60/x
  3. Step 3: Cross multiply
    180,620.20x = 270,930.30 × 117,634.60
  4. Step 4: Simplify right side
    180,620.20x = 31,870,777,468.38
  5. Step 5: Solve for x
    x = 31,870,777,468.38/180,620.20
  6. Step 6: Final answer
    x = 176,451.90

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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.