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Finding the Fourth Proportional to 66,832.56, 100,171.08 and 66,093.84

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Solution

The fourth proportional to 66,832.56, 100,171.08 and 66,093.84 is: 99,063.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,832.56 : 100,171.08 = 66,093.84 : x
  2. Step 2: Convert to fraction form
    66,832.56/100,171.08 = 66,093.84/x
  3. Step 3: Cross multiply
    66,832.56x = 100,171.08 × 66,093.84
  4. Step 4: Simplify right side
    66,832.56x = 6,620,691,334.15
  5. Step 5: Solve for x
    x = 6,620,691,334.15/66,832.56
  6. Step 6: Final answer
    x = 99,063.86

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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.