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Finding the Fourth Proportional to 68,798.57, 103,212.43 and 22,084.25

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Solution

The fourth proportional to 68,798.57, 103,212.43 and 22,084.25 is: 33,131.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,798.57 : 103,212.43 = 22,084.25 : x
  2. Step 2: Convert to fraction form
    68,798.57/103,212.43 = 22,084.25/x
  3. Step 3: Cross multiply
    68,798.57x = 103,212.43 × 22,084.25
  4. Step 4: Simplify right side
    68,798.57x = 2,279,368,535.95
  5. Step 5: Solve for x
    x = 2,279,368,535.95/68,798.57
  6. Step 6: Final answer
    x = 33,131.05

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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.