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Finding the Fourth Proportional to 180,757.50, 271,230.80 and 131,246.57

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Solution

The fourth proportional to 180,757.50, 271,230.80 and 131,246.57 is: 196,938.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,757.50 : 271,230.80 = 131,246.57 : x
  2. Step 2: Convert to fraction form
    180,757.50/271,230.80 = 131,246.57/x
  3. Step 3: Cross multiply
    180,757.50x = 271,230.80 × 131,246.57
  4. Step 4: Simplify right side
    180,757.50x = 35,598,110,165.97
  5. Step 5: Solve for x
    x = 35,598,110,165.97/180,757.50
  6. Step 6: Final answer
    x = 196,938.50

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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.