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Finding the Fourth Proportional to 104,279.70, 156,383.10 and 54,343.20

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Solution

The fourth proportional to 104,279.70, 156,383.10 and 54,343.20 is: 81,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,279.70 : 156,383.10 = 54,343.20 : x
  2. Step 2: Convert to fraction form
    104,279.70/156,383.10 = 54,343.20/x
  3. Step 3: Cross multiply
    104,279.70x = 156,383.10 × 54,343.20
  4. Step 4: Simplify right side
    104,279.70x = 8,498,358,079.92
  5. Step 5: Solve for x
    x = 8,498,358,079.92/104,279.70
  6. Step 6: Final answer
    x = 81,495.80

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