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Finding the Fourth Proportional to 320,997.42, 481,233.42 and 121,204.44

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Solution

The fourth proportional to 320,997.42, 481,233.42 and 121,204.44 is: 181,707.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,997.42 : 481,233.42 = 121,204.44 : x
  2. Step 2: Convert to fraction form
    320,997.42/481,233.42 = 121,204.44/x
  3. Step 3: Cross multiply
    320,997.42x = 481,233.42 × 121,204.44
  4. Step 4: Simplify right side
    320,997.42x = 58,327,627,180.38
  5. Step 5: Solve for x
    x = 58,327,627,180.38/320,997.42
  6. Step 6: Final answer
    x = 181,707.46

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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.