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Finding the Fourth Proportional to 218,845.89, 327,335.72 and 134,398.53

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Solution

The fourth proportional to 218,845.89, 327,335.72 and 134,398.53 is: 201,024.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,845.89 : 327,335.72 = 134,398.53 : x
  2. Step 2: Convert to fraction form
    218,845.89/327,335.72 = 134,398.53/x
  3. Step 3: Cross multiply
    218,845.89x = 327,335.72 × 134,398.53
  4. Step 4: Simplify right side
    218,845.89x = 43,993,438,912.50
  5. Step 5: Solve for x
    x = 43,993,438,912.50/218,845.89
  6. Step 6: Final answer
    x = 201,024.74

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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.