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Finding the Fourth Proportional to 61,768.59, 85,209.35 and 41,351.46

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Solution

The fourth proportional to 61,768.59, 85,209.35 and 41,351.46 is: 57,044.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,768.59 : 85,209.35 = 41,351.46 : x
  2. Step 2: Convert to fraction form
    61,768.59/85,209.35 = 41,351.46/x
  3. Step 3: Cross multiply
    61,768.59x = 85,209.35 × 41,351.46
  4. Step 4: Simplify right side
    61,768.59x = 3,523,530,821.39
  5. Step 5: Solve for x
    x = 3,523,530,821.39/61,768.59
  6. Step 6: Final answer
    x = 57,044.05

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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.