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Finding the Fourth Proportional to 341.55, 511.83 and 135.99

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Solution

The fourth proportional to 341.55, 511.83 and 135.99 is: 203.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.55 : 511.83 = 135.99 : x
  2. Step 2: Convert to fraction form
    341.55/511.83 = 135.99/x
  3. Step 3: Cross multiply
    341.55x = 511.83 × 135.99
  4. Step 4: Simplify right side
    341.55x = 69,603.76
  5. Step 5: Solve for x
    x = 69,603.76/341.55
  6. Step 6: Final answer
    x = 203.79

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