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Finding the Fourth Proportional to 270,410.78, 405,861.20 and 144,156.90

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Solution

The fourth proportional to 270,410.78, 405,861.20 and 144,156.90 is: 216,365.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,410.78 : 405,861.20 = 144,156.90 : x
  2. Step 2: Convert to fraction form
    270,410.78/405,861.20 = 144,156.90/x
  3. Step 3: Cross multiply
    270,410.78x = 405,861.20 × 144,156.90
  4. Step 4: Simplify right side
    270,410.78x = 58,507,692,422.28
  5. Step 5: Solve for x
    x = 58,507,692,422.28/270,410.78
  6. Step 6: Final answer
    x = 216,365.98

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