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Finding the Fourth Proportional to 331.22, 496.53 and 177

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Solution

The fourth proportional to 331.22, 496.53 and 177 is: 265.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    331.22 : 496.53 = 177 : x
  2. Step 2: Convert to fraction form
    331.22/496.53 = 177/x
  3. Step 3: Cross multiply
    331.22x = 496.53 × 177
  4. Step 4: Simplify right side
    331.22x = 87,885.81
  5. Step 5: Solve for x
    x = 87,885.81/331.22
  6. Step 6: Final answer
    x = 265.34

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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.