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Finding the Fourth Proportional to 162,112.80, 243,111.60 and 73,408.80

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Solution

The fourth proportional to 162,112.80, 243,111.60 and 73,408.80 is: 110,087.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,112.80 : 243,111.60 = 73,408.80 : x
  2. Step 2: Convert to fraction form
    162,112.80/243,111.60 = 73,408.80/x
  3. Step 3: Cross multiply
    162,112.80x = 243,111.60 × 73,408.80
  4. Step 4: Simplify right side
    162,112.80x = 17,846,530,822.08
  5. Step 5: Solve for x
    x = 17,846,530,822.08/162,112.80
  6. Step 6: Final answer
    x = 110,087.12

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