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Finding the Fourth Proportional to 88,639.88, 132,920.84 and 33,197

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Solution

The fourth proportional to 88,639.88, 132,920.84 and 33,197 is: 49,780.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,639.88 : 132,920.84 = 33,197 : x
  2. Step 2: Convert to fraction form
    88,639.88/132,920.84 = 33,197/x
  3. Step 3: Cross multiply
    88,639.88x = 132,920.84 × 33,197
  4. Step 4: Simplify right side
    88,639.88x = 4,412,573,125.48
  5. Step 5: Solve for x
    x = 4,412,573,125.48/88,639.88
  6. Step 6: Final answer
    x = 49,780.90

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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.