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Finding the Fourth Proportional to 68,227.25, 102,344.52 and 21,483.77

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Solution

The fourth proportional to 68,227.25, 102,344.52 and 21,483.77 is: 32,226.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,227.25 : 102,344.52 = 21,483.77 : x
  2. Step 2: Convert to fraction form
    68,227.25/102,344.52 = 21,483.77/x
  3. Step 3: Cross multiply
    68,227.25x = 102,344.52 × 21,483.77
  4. Step 4: Simplify right side
    68,227.25x = 2,198,746,128.44
  5. Step 5: Solve for x
    x = 2,198,746,128.44/68,227.25
  6. Step 6: Final answer
    x = 32,226.80

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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.