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Finding the Fourth Proportional to 110,967.87, 166,447.46 and 61,146.75

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Solution

The fourth proportional to 110,967.87, 166,447.46 and 61,146.75 is: 91,717.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,967.87 : 166,447.46 = 61,146.75 : x
  2. Step 2: Convert to fraction form
    110,967.87/166,447.46 = 61,146.75/x
  3. Step 3: Cross multiply
    110,967.87x = 166,447.46 × 61,146.75
  4. Step 4: Simplify right side
    110,967.87x = 10,177,720,919.02
  5. Step 5: Solve for x
    x = 10,177,720,919.02/110,967.87
  6. Step 6: Final answer
    x = 91,717.73

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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.