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Finding the Fourth Proportional to 61,793.78, 85,274.96 and 34,936.22

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Solution

The fourth proportional to 61,793.78, 85,274.96 and 34,936.22 is: 48,211.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,793.78 : 85,274.96 = 34,936.22 : x
  2. Step 2: Convert to fraction form
    61,793.78/85,274.96 = 34,936.22/x
  3. Step 3: Cross multiply
    61,793.78x = 85,274.96 × 34,936.22
  4. Step 4: Simplify right side
    61,793.78x = 2,979,184,763.05
  5. Step 5: Solve for x
    x = 2,979,184,763.05/61,793.78
  6. Step 6: Final answer
    x = 48,211.73

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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.