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Finding the Fourth Proportional to 347,791.92, 521,644.32 and 111,114.96

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Solution

The fourth proportional to 347,791.92, 521,644.32 and 111,114.96 is: 166,658.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,791.92 : 521,644.32 = 111,114.96 : x
  2. Step 2: Convert to fraction form
    347,791.92/521,644.32 = 111,114.96/x
  3. Step 3: Cross multiply
    347,791.92x = 521,644.32 × 111,114.96
  4. Step 4: Simplify right side
    347,791.92x = 57,962,487,751.03
  5. Step 5: Solve for x
    x = 57,962,487,751.03/347,791.92
  6. Step 6: Final answer
    x = 166,658.52

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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.