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Finding the Fourth Proportional to 219,805.68, 329,662.38 and 61,997.22

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Solution

The fourth proportional to 219,805.68, 329,662.38 and 61,997.22 is: 92,982.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,805.68 : 329,662.38 = 61,997.22 : x
  2. Step 2: Convert to fraction form
    219,805.68/329,662.38 = 61,997.22/x
  3. Step 3: Cross multiply
    219,805.68x = 329,662.38 × 61,997.22
  4. Step 4: Simplify right side
    219,805.68x = 20,438,152,102.33
  5. Step 5: Solve for x
    x = 20,438,152,102.33/219,805.68
  6. Step 6: Final answer
    x = 92,982.82

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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.