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Finding the Fourth Proportional to 413,635.20, 620,452.80 and 133,152.45

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Solution

The fourth proportional to 413,635.20, 620,452.80 and 133,152.45 is: 199,728.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,635.20 : 620,452.80 = 133,152.45 : x
  2. Step 2: Convert to fraction form
    413,635.20/620,452.80 = 133,152.45/x
  3. Step 3: Cross multiply
    413,635.20x = 620,452.80 × 133,152.45
  4. Step 4: Simplify right side
    413,635.20x = 82,614,810,429.36
  5. Step 5: Solve for x
    x = 82,614,810,429.36/413,635.20
  6. Step 6: Final answer
    x = 199,728.68

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