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Finding the Fourth Proportional to 68,404.61, 102,521.25 and 36,736.85

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Solution

The fourth proportional to 68,404.61, 102,521.25 and 36,736.85 is: 55,059.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,404.61 : 102,521.25 = 36,736.85 : x
  2. Step 2: Convert to fraction form
    68,404.61/102,521.25 = 36,736.85/x
  3. Step 3: Cross multiply
    68,404.61x = 102,521.25 × 36,736.85
  4. Step 4: Simplify right side
    68,404.61x = 3,766,307,462.68
  5. Step 5: Solve for x
    x = 3,766,307,462.68/68,404.61
  6. Step 6: Final answer
    x = 55,059.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.