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Finding the Fourth Proportional to 61,708.88, 85,158.66 and 33,414.57

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Solution

The fourth proportional to 61,708.88, 85,158.66 and 33,414.57 is: 46,112.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,708.88 : 85,158.66 = 33,414.57 : x
  2. Step 2: Convert to fraction form
    61,708.88/85,158.66 = 33,414.57/x
  3. Step 3: Cross multiply
    61,708.88x = 85,158.66 × 33,414.57
  4. Step 4: Simplify right side
    61,708.88x = 2,845,540,005.68
  5. Step 5: Solve for x
    x = 2,845,540,005.68/61,708.88
  6. Step 6: Final answer
    x = 46,112.33

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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.