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Finding the Fourth Proportional to 137,226.40, 205,788.40 and 54,103.20

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Solution

The fourth proportional to 137,226.40, 205,788.40 and 54,103.20 is: 81,134.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,226.40 : 205,788.40 = 54,103.20 : x
  2. Step 2: Convert to fraction form
    137,226.40/205,788.40 = 54,103.20/x
  3. Step 3: Cross multiply
    137,226.40x = 205,788.40 × 54,103.20
  4. Step 4: Simplify right side
    137,226.40x = 11,133,810,962.88
  5. Step 5: Solve for x
    x = 11,133,810,962.88/137,226.40
  6. Step 6: Final answer
    x = 81,134.61

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