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Finding the Fourth Proportional to 104,432.80, 144,057.52 and 66,121.96

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Solution

The fourth proportional to 104,432.80, 144,057.52 and 66,121.96 is: 91,210.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,432.80 : 144,057.52 = 66,121.96 : x
  2. Step 2: Convert to fraction form
    104,432.80/144,057.52 = 66,121.96/x
  3. Step 3: Cross multiply
    104,432.80x = 144,057.52 × 66,121.96
  4. Step 4: Simplify right side
    104,432.80x = 9,525,365,575.14
  5. Step 5: Solve for x
    x = 9,525,365,575.14/104,432.80
  6. Step 6: Final answer
    x = 91,210.48

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