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Finding the Fourth Proportional to 66,744.73, 100,062.22 and 31,188.47

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Solution

The fourth proportional to 66,744.73, 100,062.22 and 31,188.47 is: 46,757.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,744.73 : 100,062.22 = 31,188.47 : x
  2. Step 2: Convert to fraction form
    66,744.73/100,062.22 = 31,188.47/x
  3. Step 3: Cross multiply
    66,744.73x = 100,062.22 × 31,188.47
  4. Step 4: Simplify right side
    66,744.73x = 3,120,787,546.60
  5. Step 5: Solve for x
    x = 3,120,787,546.60/66,744.73
  6. Step 6: Final answer
    x = 46,757.06

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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.