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Finding the Fourth Proportional to 68,850.57, 103,275.85 and 22,136.25

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Solution

The fourth proportional to 68,850.57, 103,275.85 and 22,136.25 is: 33,204.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,850.57 : 103,275.85 = 22,136.25 : x
  2. Step 2: Convert to fraction form
    68,850.57/103,275.85 = 22,136.25/x
  3. Step 3: Cross multiply
    68,850.57x = 103,275.85 × 22,136.25
  4. Step 4: Simplify right side
    68,850.57x = 2,286,139,462.84
  5. Step 5: Solve for x
    x = 2,286,139,462.84/68,850.57
  6. Step 6: Final answer
    x = 33,204.37

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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.