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Finding the Fourth Proportional to 231,690.78, 347,507.01 and 73,906.02

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Solution

The fourth proportional to 231,690.78, 347,507.01 and 73,906.02 is: 110,849.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,690.78 : 347,507.01 = 73,906.02 : x
  2. Step 2: Convert to fraction form
    231,690.78/347,507.01 = 73,906.02/x
  3. Step 3: Cross multiply
    231,690.78x = 347,507.01 × 73,906.02
  4. Step 4: Simplify right side
    231,690.78x = 25,682,860,031.20
  5. Step 5: Solve for x
    x = 25,682,860,031.20/231,690.78
  6. Step 6: Final answer
    x = 110,849.73

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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.