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Finding the Fourth Proportional to 61,168.23, 91,748.25 and 16,791.30

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Solution

The fourth proportional to 61,168.23, 91,748.25 and 16,791.30 is: 25,185.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,168.23 : 91,748.25 = 16,791.30 : x
  2. Step 2: Convert to fraction form
    61,168.23/91,748.25 = 16,791.30/x
  3. Step 3: Cross multiply
    61,168.23x = 91,748.25 × 16,791.30
  4. Step 4: Simplify right side
    61,168.23x = 1,540,572,390.23
  5. Step 5: Solve for x
    x = 1,540,572,390.23/61,168.23
  6. Step 6: Final answer
    x = 25,185.83

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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.