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Finding the Fourth Proportional to 231,536.48, 347,311.92 and 79,732

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Solution

The fourth proportional to 231,536.48, 347,311.92 and 79,732 is: 119,600.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,536.48 : 347,311.92 = 79,732 : x
  2. Step 2: Convert to fraction form
    231,536.48/347,311.92 = 79,732/x
  3. Step 3: Cross multiply
    231,536.48x = 347,311.92 × 79,732
  4. Step 4: Simplify right side
    231,536.48x = 27,691,874,005.44
  5. Step 5: Solve for x
    x = 27,691,874,005.44/231,536.48
  6. Step 6: Final answer
    x = 119,600.48

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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.