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Finding the Fourth Proportional to 100,623.24, 138,851.03 and 55,300.73

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Solution

The fourth proportional to 100,623.24, 138,851.03 and 55,300.73 is: 76,310.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,623.24 : 138,851.03 = 55,300.73 : x
  2. Step 2: Convert to fraction form
    100,623.24/138,851.03 = 55,300.73/x
  3. Step 3: Cross multiply
    100,623.24x = 138,851.03 × 55,300.73
  4. Step 4: Simplify right side
    100,623.24x = 7,678,562,764.25
  5. Step 5: Solve for x
    x = 7,678,562,764.25/100,623.24
  6. Step 6: Final answer
    x = 76,310.03

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