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Finding the Fourth Proportional to 167,906.20, 251,664.90 and 68,000.80

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Solution

The fourth proportional to 167,906.20, 251,664.90 and 68,000.80 is: 101,922.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,906.20 : 251,664.90 = 68,000.80 : x
  2. Step 2: Convert to fraction form
    167,906.20/251,664.90 = 68,000.80/x
  3. Step 3: Cross multiply
    167,906.20x = 251,664.90 × 68,000.80
  4. Step 4: Simplify right side
    167,906.20x = 17,113,414,531.92
  5. Step 5: Solve for x
    x = 17,113,414,531.92/167,906.20
  6. Step 6: Final answer
    x = 101,922.47

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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.