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Finding the Fourth Proportional to 413,518.60, 620,364.30 and 133,064.20

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Solution

The fourth proportional to 413,518.60, 620,364.30 and 133,064.20 is: 199,624.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,518.60 : 620,364.30 = 133,064.20 : x
  2. Step 2: Convert to fraction form
    413,518.60/620,364.30 = 133,064.20/x
  3. Step 3: Cross multiply
    413,518.60x = 620,364.30 × 133,064.20
  4. Step 4: Simplify right side
    413,518.60x = 82,548,279,288.06
  5. Step 5: Solve for x
    x = 82,548,279,288.06/413,518.60
  6. Step 6: Final answer
    x = 199,624.10

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