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Finding the Fourth Proportional to 88,334.93, 132,982.95 and 80,487.95

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Solution

The fourth proportional to 88,334.93, 132,982.95 and 80,487.95 is: 121,169.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,334.93 : 132,982.95 = 80,487.95 : x
  2. Step 2: Convert to fraction form
    88,334.93/132,982.95 = 80,487.95/x
  3. Step 3: Cross multiply
    88,334.93x = 132,982.95 × 80,487.95
  4. Step 4: Simplify right side
    88,334.93x = 10,703,524,365.54
  5. Step 5: Solve for x
    x = 10,703,524,365.54/88,334.93
  6. Step 6: Final answer
    x = 121,169.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.