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Finding the Fourth Proportional to 82.76, 123.98 and 59.83

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Solution

The fourth proportional to 82.76, 123.98 and 59.83 is: 89.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    82.76 : 123.98 = 59.83 : x
  2. Step 2: Convert to fraction form
    82.76/123.98 = 59.83/x
  3. Step 3: Cross multiply
    82.76x = 123.98 × 59.83
  4. Step 4: Simplify right side
    82.76x = 7,417.11
  5. Step 5: Solve for x
    x = 7,417.11/82.76
  6. Step 6: Final answer
    x = 89.63

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