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Finding the Fourth Proportional to 234,432.56, 351,608.09 and 65,912.89

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Solution

The fourth proportional to 234,432.56, 351,608.09 and 65,912.89 is: 98,857.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,432.56 : 351,608.09 = 65,912.89 : x
  2. Step 2: Convert to fraction form
    234,432.56/351,608.09 = 65,912.89/x
  3. Step 3: Cross multiply
    234,432.56x = 351,608.09 × 65,912.89
  4. Step 4: Simplify right side
    234,432.56x = 23,175,505,736.98
  5. Step 5: Solve for x
    x = 23,175,505,736.98/234,432.56
  6. Step 6: Final answer
    x = 98,857.88

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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.