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Finding the Fourth Proportional to 148.44, 204.85 and 82.94

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Solution

The fourth proportional to 148.44, 204.85 and 82.94 is: 114.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    148.44 : 204.85 = 82.94 : x
  2. Step 2: Convert to fraction form
    148.44/204.85 = 82.94/x
  3. Step 3: Cross multiply
    148.44x = 204.85 × 82.94
  4. Step 4: Simplify right side
    148.44x = 16,990.26
  5. Step 5: Solve for x
    x = 16,990.26/148.44
  6. Step 6: Final answer
    x = 114.46

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.