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Finding the Fourth Proportional to 73,472.82, 110,121.75 and 51,165.42

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Solution

The fourth proportional to 73,472.82, 110,121.75 and 51,165.42 is: 76,687.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,472.82 : 110,121.75 = 51,165.42 : x
  2. Step 2: Convert to fraction form
    73,472.82/110,121.75 = 51,165.42/x
  3. Step 3: Cross multiply
    73,472.82x = 110,121.75 × 51,165.42
  4. Step 4: Simplify right side
    73,472.82x = 5,634,425,589.89
  5. Step 5: Solve for x
    x = 5,634,425,589.89/73,472.82
  6. Step 6: Final answer
    x = 76,687.21

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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.