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Finding the Fourth Proportional to 68,858.76, 103,292.84 and 22,108.80

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Solution

The fourth proportional to 68,858.76, 103,292.84 and 22,108.80 is: 33,164.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,858.76 : 103,292.84 = 22,108.80 : x
  2. Step 2: Convert to fraction form
    68,858.76/103,292.84 = 22,108.80/x
  3. Step 3: Cross multiply
    68,858.76x = 103,292.84 × 22,108.80
  4. Step 4: Simplify right side
    68,858.76x = 2,283,680,740.99
  5. Step 5: Solve for x
    x = 2,283,680,740.99/68,858.76
  6. Step 6: Final answer
    x = 33,164.71

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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.