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Finding the Fourth Proportional to 109,219.20, 163,699.20 and 46,039.20

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Solution

The fourth proportional to 109,219.20, 163,699.20 and 46,039.20 is: 69,004.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,219.20 : 163,699.20 = 46,039.20 : x
  2. Step 2: Convert to fraction form
    109,219.20/163,699.20 = 46,039.20/x
  3. Step 3: Cross multiply
    109,219.20x = 163,699.20 × 46,039.20
  4. Step 4: Simplify right side
    109,219.20x = 7,536,580,208.64
  5. Step 5: Solve for x
    x = 7,536,580,208.64/109,219.20
  6. Step 6: Final answer
    x = 69,004.17

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