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Finding the Fourth Proportional to 68,926.87, 103,390.85 and 37,745.11

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Solution

The fourth proportional to 68,926.87, 103,390.85 and 37,745.11 is: 56,617.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,926.87 : 103,390.85 = 37,745.11 : x
  2. Step 2: Convert to fraction form
    68,926.87/103,390.85 = 37,745.11/x
  3. Step 3: Cross multiply
    68,926.87x = 103,390.85 × 37,745.11
  4. Step 4: Simplify right side
    68,926.87x = 3,902,499,006.24
  5. Step 5: Solve for x
    x = 3,902,499,006.24/68,926.87
  6. Step 6: Final answer
    x = 56,617.96

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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.