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Finding the Fourth Proportional to 272,940.54, 409,354.34 and 73,213.44

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Solution

The fourth proportional to 272,940.54, 409,354.34 and 73,213.44 is: 109,805.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,940.54 : 409,354.34 = 73,213.44 : x
  2. Step 2: Convert to fraction form
    272,940.54/409,354.34 = 73,213.44/x
  3. Step 3: Cross multiply
    272,940.54x = 409,354.34 × 73,213.44
  4. Step 4: Simplify right side
    272,940.54x = 29,970,239,044.26
  5. Step 5: Solve for x
    x = 29,970,239,044.26/272,940.54
  6. Step 6: Final answer
    x = 109,805.01

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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.