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Finding the Fourth Proportional to 61,701.41, 85,138.76 and 34,843.39

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Solution

The fourth proportional to 61,701.41, 85,138.76 and 34,843.39 is: 48,078.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,701.41 : 85,138.76 = 34,843.39 : x
  2. Step 2: Convert to fraction form
    61,701.41/85,138.76 = 34,843.39/x
  3. Step 3: Cross multiply
    61,701.41x = 85,138.76 × 34,843.39
  4. Step 4: Simplify right side
    61,701.41x = 2,966,522,893.06
  5. Step 5: Solve for x
    x = 2,966,522,893.06/61,701.41
  6. Step 6: Final answer
    x = 48,078.69

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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.