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Finding the Fourth Proportional to 180,917.75, 271,377.34 and 75,662.91

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Solution

The fourth proportional to 180,917.75, 271,377.34 and 75,662.91 is: 113,494.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,917.75 : 271,377.34 = 75,662.91 : x
  2. Step 2: Convert to fraction form
    180,917.75/271,377.34 = 75,662.91/x
  3. Step 3: Cross multiply
    180,917.75x = 271,377.34 × 75,662.91
  4. Step 4: Simplify right side
    180,917.75x = 20,533,199,063.30
  5. Step 5: Solve for x
    x = 20,533,199,063.30/180,917.75
  6. Step 6: Final answer
    x = 113,494.66

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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.