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Finding the Fourth Proportional to 68,767.68, 103,166.64 and 22,025.28

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Solution

The fourth proportional to 68,767.68, 103,166.64 and 22,025.28 is: 33,042.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,767.68 : 103,166.64 = 22,025.28 : x
  2. Step 2: Convert to fraction form
    68,767.68/103,166.64 = 22,025.28/x
  3. Step 3: Cross multiply
    68,767.68x = 103,166.64 × 22,025.28
  4. Step 4: Simplify right side
    68,767.68x = 2,272,274,132.66
  5. Step 5: Solve for x
    x = 2,272,274,132.66/68,767.68
  6. Step 6: Final answer
    x = 33,042.76

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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.