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Finding the Fourth Proportional to 327,241.42, 490,807.45 and 90,608.02

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Solution

The fourth proportional to 327,241.42, 490,807.45 and 90,608.02 is: 135,896.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,241.42 : 490,807.45 = 90,608.02 : x
  2. Step 2: Convert to fraction form
    327,241.42/490,807.45 = 90,608.02/x
  3. Step 3: Cross multiply
    327,241.42x = 490,807.45 × 90,608.02
  4. Step 4: Simplify right side
    327,241.42x = 44,471,090,131.99
  5. Step 5: Solve for x
    x = 44,471,090,131.99/327,241.42
  6. Step 6: Final answer
    x = 135,896.89

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Why These Related Problems?

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