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Finding the Fourth Proportional to 61,661.22, 85,092.71 and 33,366.90

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Solution

The fourth proportional to 61,661.22, 85,092.71 and 33,366.90 is: 46,046.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,661.22 : 85,092.71 = 33,366.90 : x
  2. Step 2: Convert to fraction form
    61,661.22/85,092.71 = 33,366.90/x
  3. Step 3: Cross multiply
    61,661.22x = 85,092.71 × 33,366.90
  4. Step 4: Simplify right side
    61,661.22x = 2,839,279,778.46
  5. Step 5: Solve for x
    x = 2,839,279,778.46/61,661.22
  6. Step 6: Final answer
    x = 46,046.44

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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.