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Finding the Fourth Proportional to 119.79, 179.78 and 59.00

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Solution

The fourth proportional to 119.79, 179.78 and 59.00 is: 88.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    119.79 : 179.78 = 59.00 : x
  2. Step 2: Convert to fraction form
    119.79/179.78 = 59.00/x
  3. Step 3: Cross multiply
    119.79x = 179.78 × 59.00
  4. Step 4: Simplify right side
    119.79x = 10,605.83
  5. Step 5: Solve for x
    x = 10,605.83/119.79
  6. Step 6: Final answer
    x = 88.54

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