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Finding the Fourth Proportional to 110,719.60, 166,103.70 and 54,586.60

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Solution

The fourth proportional to 110,719.60, 166,103.70 and 54,586.60 is: 81,891.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,719.60 : 166,103.70 = 54,586.60 : x
  2. Step 2: Convert to fraction form
    110,719.60/166,103.70 = 54,586.60/x
  3. Step 3: Cross multiply
    110,719.60x = 166,103.70 × 54,586.60
  4. Step 4: Simplify right side
    110,719.60x = 9,067,036,230.42
  5. Step 5: Solve for x
    x = 9,067,036,230.42/110,719.60
  6. Step 6: Final answer
    x = 81,891.88

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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.