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Finding the Fourth Proportional to 283.28, 424.89 and 137.04

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Solution

The fourth proportional to 283.28, 424.89 and 137.04 is: 205.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    283.28 : 424.89 = 137.04 : x
  2. Step 2: Convert to fraction form
    283.28/424.89 = 137.04/x
  3. Step 3: Cross multiply
    283.28x = 424.89 × 137.04
  4. Step 4: Simplify right side
    283.28x = 58,225.33
  5. Step 5: Solve for x
    x = 58,225.33/283.28
  6. Step 6: Final answer
    x = 205.54

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