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Finding the Fourth Proportional to 325,612.80, 488,273.40 and 148,028.40

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Solution

The fourth proportional to 325,612.80, 488,273.40 and 148,028.40 is: 221,976.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,612.80 : 488,273.40 = 148,028.40 : x
  2. Step 2: Convert to fraction form
    325,612.80/488,273.40 = 148,028.40/x
  3. Step 3: Cross multiply
    325,612.80x = 488,273.40 × 148,028.40
  4. Step 4: Simplify right side
    325,612.80x = 72,278,330,164.56
  5. Step 5: Solve for x
    x = 72,278,330,164.56/325,612.80
  6. Step 6: Final answer
    x = 221,976.32

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