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Finding the Fourth Proportional to 207,348.80, 311,023.20 and 102,372.80

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Solution

The fourth proportional to 207,348.80, 311,023.20 and 102,372.80 is: 153,559.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,348.80 : 311,023.20 = 102,372.80 : x
  2. Step 2: Convert to fraction form
    207,348.80/311,023.20 = 102,372.80/x
  3. Step 3: Cross multiply
    207,348.80x = 311,023.20 × 102,372.80
  4. Step 4: Simplify right side
    207,348.80x = 31,840,315,848.96
  5. Step 5: Solve for x
    x = 31,840,315,848.96/207,348.80
  6. Step 6: Final answer
    x = 153,559.20

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