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Finding the Fourth Proportional to 373,842.68, 515,896.20 and 212,694.26

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Solution

The fourth proportional to 373,842.68, 515,896.20 and 212,694.26 is: 293,514.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,842.68 : 515,896.20 = 212,694.26 : x
  2. Step 2: Convert to fraction form
    373,842.68/515,896.20 = 212,694.26/x
  3. Step 3: Cross multiply
    373,842.68x = 515,896.20 × 212,694.26
  4. Step 4: Simplify right side
    373,842.68x = 109,728,157,916.33
  5. Step 5: Solve for x
    x = 109,728,157,916.33/373,842.68
  6. Step 6: Final answer
    x = 293,514.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.