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Finding the Fourth Proportional to 88,660.40, 132,990.60 and 33,249.20

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Solution

The fourth proportional to 88,660.40, 132,990.60 and 33,249.20 is: 49,873.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,660.40 : 132,990.60 = 33,249.20 : x
  2. Step 2: Convert to fraction form
    88,660.40/132,990.60 = 33,249.20/x
  3. Step 3: Cross multiply
    88,660.40x = 132,990.60 × 33,249.20
  4. Step 4: Simplify right side
    88,660.40x = 4,421,831,057.52
  5. Step 5: Solve for x
    x = 4,421,831,057.52/88,660.40
  6. Step 6: Final answer
    x = 49,873.80

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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.