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Finding the Fourth Proportional to 78.55, 117.83 and 46.04

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Solution

The fourth proportional to 78.55, 117.83 and 46.04 is: 69.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78.55 : 117.83 = 46.04 : x
  2. Step 2: Convert to fraction form
    78.55/117.83 = 46.04/x
  3. Step 3: Cross multiply
    78.55x = 117.83 × 46.04
  4. Step 4: Simplify right side
    78.55x = 5,424.42
  5. Step 5: Solve for x
    x = 5,424.42/78.55
  6. Step 6: Final answer
    x = 69.06

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