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Finding the Fourth Proportional to 110,781, 166,195.80 and 35,908.56

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Solution

The fourth proportional to 110,781, 166,195.80 and 35,908.56 is: 53,870.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,781 : 166,195.80 = 35,908.56 : x
  2. Step 2: Convert to fraction form
    110,781/166,195.80 = 35,908.56/x
  3. Step 3: Cross multiply
    110,781x = 166,195.80 × 35,908.56
  4. Step 4: Simplify right side
    110,781x = 5,967,851,856.05
  5. Step 5: Solve for x
    x = 5,967,851,856.05/110,781
  6. Step 6: Final answer
    x = 53,870.72

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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.