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Finding the Fourth Proportional to 110,903.31, 166,294.17 and 54,619.65

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Solution

The fourth proportional to 110,903.31, 166,294.17 and 54,619.65 is: 81,899.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,903.31 : 166,294.17 = 54,619.65 : x
  2. Step 2: Convert to fraction form
    110,903.31/166,294.17 = 54,619.65/x
  3. Step 3: Cross multiply
    110,903.31x = 166,294.17 × 54,619.65
  4. Step 4: Simplify right side
    110,903.31x = 9,082,929,362.44
  5. Step 5: Solve for x
    x = 9,082,929,362.44/110,903.31
  6. Step 6: Final answer
    x = 81,899.53

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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.