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Finding the Fourth Proportional to 163,091.46, 225,063.45 and 91,469.94

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Solution

The fourth proportional to 163,091.46, 225,063.45 and 91,469.94 is: 126,226.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,091.46 : 225,063.45 = 91,469.94 : x
  2. Step 2: Convert to fraction form
    163,091.46/225,063.45 = 91,469.94/x
  3. Step 3: Cross multiply
    163,091.46x = 225,063.45 × 91,469.94
  4. Step 4: Simplify right side
    163,091.46x = 20,586,540,267.69
  5. Step 5: Solve for x
    x = 20,586,540,267.69/163,091.46
  6. Step 6: Final answer
    x = 126,226.97

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1.5x scale

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.