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Finding the Fourth Proportional to 323.84, 446.91 and 176.48

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Solution

The fourth proportional to 323.84, 446.91 and 176.48 is: 243.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.84 : 446.91 = 176.48 : x
  2. Step 2: Convert to fraction form
    323.84/446.91 = 176.48/x
  3. Step 3: Cross multiply
    323.84x = 446.91 × 176.48
  4. Step 4: Simplify right side
    323.84x = 78,871.79
  5. Step 5: Solve for x
    x = 78,871.79/323.84
  6. Step 6: Final answer
    x = 243.55

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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.