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Finding the Fourth Proportional to 92,113.67, 138,170.54 and 32,945.80

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Solution

The fourth proportional to 92,113.67, 138,170.54 and 32,945.80 is: 49,418.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,113.67 : 138,170.54 = 32,945.80 : x
  2. Step 2: Convert to fraction form
    92,113.67/138,170.54 = 32,945.80/x
  3. Step 3: Cross multiply
    92,113.67x = 138,170.54 × 32,945.80
  4. Step 4: Simplify right side
    92,113.67x = 4,552,138,976.73
  5. Step 5: Solve for x
    x = 4,552,138,976.73/92,113.67
  6. Step 6: Final answer
    x = 49,418.71

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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.