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Finding the Fourth Proportional to 61,843.50, 85,310.01 and 43,965.18

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Solution

The fourth proportional to 61,843.50, 85,310.01 and 43,965.18 is: 60,647.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,843.50 : 85,310.01 = 43,965.18 : x
  2. Step 2: Convert to fraction form
    61,843.50/85,310.01 = 43,965.18/x
  3. Step 3: Cross multiply
    61,843.50x = 85,310.01 × 43,965.18
  4. Step 4: Simplify right side
    61,843.50x = 3,750,669,945.45
  5. Step 5: Solve for x
    x = 3,750,669,945.45/61,843.50
  6. Step 6: Final answer
    x = 60,647.76

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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.