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Finding the Fourth Proportional to 61,745.69, 85,204.31 and 34,891.16

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Solution

The fourth proportional to 61,745.69, 85,204.31 and 34,891.16 is: 48,147.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,745.69 : 85,204.31 = 34,891.16 : x
  2. Step 2: Convert to fraction form
    61,745.69/85,204.31 = 34,891.16/x
  3. Step 3: Cross multiply
    61,745.69x = 85,204.31 × 34,891.16
  4. Step 4: Simplify right side
    61,745.69x = 2,972,876,612.42
  5. Step 5: Solve for x
    x = 2,972,876,612.42/61,745.69
  6. Step 6: Final answer
    x = 48,147.11

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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.