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Finding the Fourth Proportional to 217,146.99, 325,764.02 and 74,997.48

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Solution

The fourth proportional to 217,146.99, 325,764.02 and 74,997.48 is: 112,511.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,146.99 : 325,764.02 = 74,997.48 : x
  2. Step 2: Convert to fraction form
    217,146.99/325,764.02 = 74,997.48/x
  3. Step 3: Cross multiply
    217,146.99x = 325,764.02 × 74,997.48
  4. Step 4: Simplify right side
    217,146.99x = 24,431,481,309.99
  5. Step 5: Solve for x
    x = 24,431,481,309.99/217,146.99
  6. Step 6: Final answer
    x = 112,511.26

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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.