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Finding the Fourth Proportional to 67,209.54, 92,749.50 and 36,997.90

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Solution

The fourth proportional to 67,209.54, 92,749.50 and 36,997.90 is: 51,057.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,209.54 : 92,749.50 = 36,997.90 : x
  2. Step 2: Convert to fraction form
    67,209.54/92,749.50 = 36,997.90/x
  3. Step 3: Cross multiply
    67,209.54x = 92,749.50 × 36,997.90
  4. Step 4: Simplify right side
    67,209.54x = 3,431,536,726.05
  5. Step 5: Solve for x
    x = 3,431,536,726.05/67,209.54
  6. Step 6: Final answer
    x = 51,057.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.