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Finding the Fourth Proportional to 61,163.48, 84,369.78 and 38,466.48

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Solution

The fourth proportional to 61,163.48, 84,369.78 and 38,466.48 is: 53,061.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,163.48 : 84,369.78 = 38,466.48 : x
  2. Step 2: Convert to fraction form
    61,163.48/84,369.78 = 38,466.48/x
  3. Step 3: Cross multiply
    61,163.48x = 84,369.78 × 38,466.48
  4. Step 4: Simplify right side
    61,163.48x = 3,245,408,454.97
  5. Step 5: Solve for x
    x = 3,245,408,454.97/61,163.48
  6. Step 6: Final answer
    x = 53,061.21

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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.