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Finding the Fourth Proportional to 168,606.25, 251,679.38 and 147,324.43

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Solution

The fourth proportional to 168,606.25, 251,679.38 and 147,324.43 is: 219,911.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,606.25 : 251,679.38 = 147,324.43 : x
  2. Step 2: Convert to fraction form
    168,606.25/251,679.38 = 147,324.43/x
  3. Step 3: Cross multiply
    168,606.25x = 251,679.38 × 147,324.43
  4. Step 4: Simplify right side
    168,606.25x = 37,078,519,835.43
  5. Step 5: Solve for x
    x = 37,078,519,835.43/168,606.25
  6. Step 6: Final answer
    x = 219,911.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.