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Finding the Fourth Proportional to 66,773.98, 100,091.75 and 41,756.61

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Solution

The fourth proportional to 66,773.98, 100,091.75 and 41,756.61 is: 62,591.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,773.98 : 100,091.75 = 41,756.61 : x
  2. Step 2: Convert to fraction form
    66,773.98/100,091.75 = 41,756.61/x
  3. Step 3: Cross multiply
    66,773.98x = 100,091.75 × 41,756.61
  4. Step 4: Simplify right side
    66,773.98x = 4,179,492,168.97
  5. Step 5: Solve for x
    x = 4,179,492,168.97/66,773.98
  6. Step 6: Final answer
    x = 62,591.63

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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.