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Finding the Fourth Proportional to 440.69, 660.99 and 167

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Solution

The fourth proportional to 440.69, 660.99 and 167 is: 250.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.69 : 660.99 = 167 : x
  2. Step 2: Convert to fraction form
    440.69/660.99 = 167/x
  3. Step 3: Cross multiply
    440.69x = 660.99 × 167
  4. Step 4: Simplify right side
    440.69x = 110,385.33
  5. Step 5: Solve for x
    x = 110,385.33/440.69
  6. Step 6: Final answer
    x = 250.48

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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.