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Finding the Fourth Proportional to 131.99, 198.01 and 59.86

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Solution

The fourth proportional to 131.99, 198.01 and 59.86 is: 89.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    131.99 : 198.01 = 59.86 : x
  2. Step 2: Convert to fraction form
    131.99/198.01 = 59.86/x
  3. Step 3: Cross multiply
    131.99x = 198.01 × 59.86
  4. Step 4: Simplify right side
    131.99x = 11,851.89
  5. Step 5: Solve for x
    x = 11,851.89/131.99
  6. Step 6: Final answer
    x = 89.79

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