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Finding the Fourth Proportional to 94.72, 142.08 and 70.82

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Solution

The fourth proportional to 94.72, 142.08 and 70.82 is: 106.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.72 : 142.08 = 70.82 : x
  2. Step 2: Convert to fraction form
    94.72/142.08 = 70.82/x
  3. Step 3: Cross multiply
    94.72x = 142.08 × 70.82
  4. Step 4: Simplify right side
    94.72x = 10,061.75
  5. Step 5: Solve for x
    x = 10,061.75/94.72
  6. Step 6: Final answer
    x = 106.23

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