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Finding the Fourth Proportional to 68,996.87, 103,535.46 and 29,012.96

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Solution

The fourth proportional to 68,996.87, 103,535.46 and 29,012.96 is: 43,536.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,996.87 : 103,535.46 = 29,012.96 : x
  2. Step 2: Convert to fraction form
    68,996.87/103,535.46 = 29,012.96/x
  3. Step 3: Cross multiply
    68,996.87x = 103,535.46 × 29,012.96
  4. Step 4: Simplify right side
    68,996.87x = 3,003,869,641.88
  5. Step 5: Solve for x
    x = 3,003,869,641.88/68,996.87
  6. Step 6: Final answer
    x = 43,536.32

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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.