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Finding the Fourth Proportional to 208,015.20, 312,022.80 and 173,023.20

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Solution

The fourth proportional to 208,015.20, 312,022.80 and 173,023.20 is: 259,534.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,015.20 : 312,022.80 = 173,023.20 : x
  2. Step 2: Convert to fraction form
    208,015.20/312,022.80 = 173,023.20/x
  3. Step 3: Cross multiply
    208,015.20x = 312,022.80 × 173,023.20
  4. Step 4: Simplify right side
    208,015.20x = 53,987,183,328.96
  5. Step 5: Solve for x
    x = 53,987,183,328.96/208,015.20
  6. Step 6: Final answer
    x = 259,534.80

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