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Finding the Fourth Proportional to 474.24, 711.24 and 166

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Solution

The fourth proportional to 474.24, 711.24 and 166 is: 248.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.24 : 711.24 = 166 : x
  2. Step 2: Convert to fraction form
    474.24/711.24 = 166/x
  3. Step 3: Cross multiply
    474.24x = 711.24 × 166
  4. Step 4: Simplify right side
    474.24x = 118,065.84
  5. Step 5: Solve for x
    x = 118,065.84/474.24
  6. Step 6: Final answer
    x = 248.96

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.