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Finding the Fourth Proportional to 68,850.76, 103,280.82 and 22,100.80

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Solution

The fourth proportional to 68,850.76, 103,280.82 and 22,100.80 is: 33,152.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,850.76 : 103,280.82 = 22,100.80 : x
  2. Step 2: Convert to fraction form
    68,850.76/103,280.82 = 22,100.80/x
  3. Step 3: Cross multiply
    68,850.76x = 103,280.82 × 22,100.80
  4. Step 4: Simplify right side
    68,850.76x = 2,282,588,746.66
  5. Step 5: Solve for x
    x = 2,282,588,746.66/68,850.76
  6. Step 6: Final answer
    x = 33,152.70

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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.