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Finding the Fourth Proportional to 121,672.01, 167,896.44 and 67,949.57

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Solution

The fourth proportional to 121,672.01, 167,896.44 and 67,949.57 is: 93,764.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,672.01 : 167,896.44 = 67,949.57 : x
  2. Step 2: Convert to fraction form
    121,672.01/167,896.44 = 67,949.57/x
  3. Step 3: Cross multiply
    121,672.01x = 167,896.44 × 67,949.57
  4. Step 4: Simplify right side
    121,672.01x = 11,408,490,063.05
  5. Step 5: Solve for x
    x = 11,408,490,063.05/121,672.01
  6. Step 6: Final answer
    x = 93,764.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.