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Finding the Fourth Proportional to 88,162.67, 121,672.01 and 49,928.97

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Solution

The fourth proportional to 88,162.67, 121,672.01 and 49,928.97 is: 68,906.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,162.67 : 121,672.01 = 49,928.97 : x
  2. Step 2: Convert to fraction form
    88,162.67/121,672.01 = 49,928.97/x
  3. Step 3: Cross multiply
    88,162.67x = 121,672.01 × 49,928.97
  4. Step 4: Simplify right side
    88,162.67x = 6,074,957,887.48
  5. Step 5: Solve for x
    x = 6,074,957,887.48/88,162.67
  6. Step 6: Final answer
    x = 68,906.24

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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.