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Finding the Fourth Proportional to 61,208.89, 84,469.80 and 34,353.44

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Solution

The fourth proportional to 61,208.89, 84,469.80 and 34,353.44 is: 47,408.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,208.89 : 84,469.80 = 34,353.44 : x
  2. Step 2: Convert to fraction form
    61,208.89/84,469.80 = 34,353.44/x
  3. Step 3: Cross multiply
    61,208.89x = 84,469.80 × 34,353.44
  4. Step 4: Simplify right side
    61,208.89x = 2,901,828,206.11
  5. Step 5: Solve for x
    x = 2,901,828,206.11/61,208.89
  6. Step 6: Final answer
    x = 47,408.61

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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.