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Finding the Fourth Proportional to 252,131.40, 378,124.20 and 92,188.80

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Solution

The fourth proportional to 252,131.40, 378,124.20 and 92,188.80 is: 138,256.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,131.40 : 378,124.20 = 92,188.80 : x
  2. Step 2: Convert to fraction form
    252,131.40/378,124.20 = 92,188.80/x
  3. Step 3: Cross multiply
    252,131.40x = 378,124.20 × 92,188.80
  4. Step 4: Simplify right side
    252,131.40x = 34,858,816,248.96
  5. Step 5: Solve for x
    x = 34,858,816,248.96/252,131.40
  6. Step 6: Final answer
    x = 138,256.54

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