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Finding the Fourth Proportional to 117,120.62, 161,626.42 and 63,405.60

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Solution

The fourth proportional to 117,120.62, 161,626.42 and 63,405.60 is: 87,499.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,120.62 : 161,626.42 = 63,405.60 : x
  2. Step 2: Convert to fraction form
    117,120.62/161,626.42 = 63,405.60/x
  3. Step 3: Cross multiply
    117,120.62x = 161,626.42 × 63,405.60
  4. Step 4: Simplify right side
    117,120.62x = 10,248,020,135.95
  5. Step 5: Solve for x
    x = 10,248,020,135.95/117,120.62
  6. Step 6: Final answer
    x = 87,499.71

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