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Finding the Fourth Proportional to 168,532.56, 252,736.83 and 68,638.50

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Solution

The fourth proportional to 168,532.56, 252,736.83 and 68,638.50 is: 102,932.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,532.56 : 252,736.83 = 68,638.50 : x
  2. Step 2: Convert to fraction form
    168,532.56/252,736.83 = 68,638.50/x
  3. Step 3: Cross multiply
    168,532.56x = 252,736.83 × 68,638.50
  4. Step 4: Simplify right side
    168,532.56x = 17,347,476,905.96
  5. Step 5: Solve for x
    x = 17,347,476,905.96/168,532.56
  6. Step 6: Final answer
    x = 102,932.50

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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.