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Finding the Fourth Proportional to 163,383.38, 225,469.95 and 91,763.41

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Solution

The fourth proportional to 163,383.38, 225,469.95 and 91,763.41 is: 126,634.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,383.38 : 225,469.95 = 91,763.41 : x
  2. Step 2: Convert to fraction form
    163,383.38/225,469.95 = 91,763.41/x
  3. Step 3: Cross multiply
    163,383.38x = 225,469.95 × 91,763.41
  4. Step 4: Simplify right side
    163,383.38x = 20,689,891,119.62
  5. Step 5: Solve for x
    x = 20,689,891,119.62/163,383.38
  6. Step 6: Final answer
    x = 126,634.00

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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.