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Finding the Fourth Proportional to 68,906.88, 103,360.32 and 22,166.64

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Solution

The fourth proportional to 68,906.88, 103,360.32 and 22,166.64 is: 33,249.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,906.88 : 103,360.32 = 22,166.64 : x
  2. Step 2: Convert to fraction form
    68,906.88/103,360.32 = 22,166.64/x
  3. Step 3: Cross multiply
    68,906.88x = 103,360.32 × 22,166.64
  4. Step 4: Simplify right side
    68,906.88x = 2,291,151,003.72
  5. Step 5: Solve for x
    x = 2,291,151,003.72/68,906.88
  6. Step 6: Final answer
    x = 33,249.96

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1.5x scale

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.