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Finding the Fourth Proportional to 330,902.20, 496,482.90 and 120,561.40

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Solution

The fourth proportional to 330,902.20, 496,482.90 and 120,561.40 is: 180,889.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,902.20 : 496,482.90 = 120,561.40 : x
  2. Step 2: Convert to fraction form
    330,902.20/496,482.90 = 120,561.40/x
  3. Step 3: Cross multiply
    330,902.20x = 496,482.90 × 120,561.40
  4. Step 4: Simplify right side
    330,902.20x = 59,856,673,500.06
  5. Step 5: Solve for x
    x = 59,856,673,500.06/330,902.20
  6. Step 6: Final answer
    x = 180,889.32

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