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Finding the Fourth Proportional to 68,799.57, 103,213.93 and 22,085.25

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Solution

The fourth proportional to 68,799.57, 103,213.93 and 22,085.25 is: 33,132.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,799.57 : 103,213.93 = 22,085.25 : x
  2. Step 2: Convert to fraction form
    68,799.57/103,213.93 = 22,085.25/x
  3. Step 3: Cross multiply
    68,799.57x = 103,213.93 × 22,085.25
  4. Step 4: Simplify right side
    68,799.57x = 2,279,505,447.53
  5. Step 5: Solve for x
    x = 2,279,505,447.53/68,799.57
  6. Step 6: Final answer
    x = 33,132.55

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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.