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Finding the Fourth Proportional to 61,704.76, 85,121.20 and 36,194.44

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Solution

The fourth proportional to 61,704.76, 85,121.20 and 36,194.44 is: 49,929.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,704.76 : 85,121.20 = 36,194.44 : x
  2. Step 2: Convert to fraction form
    61,704.76/85,121.20 = 36,194.44/x
  3. Step 3: Cross multiply
    61,704.76x = 85,121.20 × 36,194.44
  4. Step 4: Simplify right side
    61,704.76x = 3,080,914,166.13
  5. Step 5: Solve for x
    x = 3,080,914,166.13/61,704.76
  6. Step 6: Final answer
    x = 49,929.93

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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.