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Finding the Fourth Proportional to 218,216.40, 327,151.80 and 119,720.40

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Solution

The fourth proportional to 218,216.40, 327,151.80 and 119,720.40 is: 179,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,216.40 : 327,151.80 = 119,720.40 : x
  2. Step 2: Convert to fraction form
    218,216.40/327,151.80 = 119,720.40/x
  3. Step 3: Cross multiply
    218,216.40x = 327,151.80 × 119,720.40
  4. Step 4: Simplify right side
    218,216.40x = 39,166,744,356.72
  5. Step 5: Solve for x
    x = 39,166,744,356.72/218,216.40
  6. Step 6: Final answer
    x = 179,485.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.