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Finding the Fourth Proportional to 220,094.30, 330,019.79 and 68,249.27

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Solution

The fourth proportional to 220,094.30, 330,019.79 and 68,249.27 is: 102,336.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,094.30 : 330,019.79 = 68,249.27 : x
  2. Step 2: Convert to fraction form
    220,094.30/330,019.79 = 68,249.27/x
  3. Step 3: Cross multiply
    220,094.30x = 330,019.79 × 68,249.27
  4. Step 4: Simplify right side
    220,094.30x = 22,523,607,932.33
  5. Step 5: Solve for x
    x = 22,523,607,932.33/220,094.30
  6. Step 6: Final answer
    x = 102,336.17

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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.