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Finding the Fourth Proportional to 107,645.20, 161,467.80 and 102,806.80

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Solution

The fourth proportional to 107,645.20, 161,467.80 and 102,806.80 is: 154,210.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,645.20 : 161,467.80 = 102,806.80 : x
  2. Step 2: Convert to fraction form
    107,645.20/161,467.80 = 102,806.80/x
  3. Step 3: Cross multiply
    107,645.20x = 161,467.80 × 102,806.80
  4. Step 4: Simplify right side
    107,645.20x = 16,599,987,821.04
  5. Step 5: Solve for x
    x = 16,599,987,821.04/107,645.20
  6. Step 6: Final answer
    x = 154,210.20

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