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Finding the Fourth Proportional to 121,540.92, 167,726.50 and 67,093.12

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Solution

The fourth proportional to 121,540.92, 167,726.50 and 67,093.12 is: 92,588.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,540.92 : 167,726.50 = 67,093.12 : x
  2. Step 2: Convert to fraction form
    121,540.92/167,726.50 = 67,093.12/x
  3. Step 3: Cross multiply
    121,540.92x = 167,726.50 × 67,093.12
  4. Step 4: Simplify right side
    121,540.92x = 11,253,294,191.68
  5. Step 5: Solve for x
    x = 11,253,294,191.68/121,540.92
  6. Step 6: Final answer
    x = 92,588.52

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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.