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Finding the Fourth Proportional to 71,179.44, 98,223.84 and 39,346.56

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Solution

The fourth proportional to 71,179.44, 98,223.84 and 39,346.56 is: 54,296.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,179.44 : 98,223.84 = 39,346.56 : x
  2. Step 2: Convert to fraction form
    71,179.44/98,223.84 = 39,346.56/x
  3. Step 3: Cross multiply
    71,179.44x = 98,223.84 × 39,346.56
  4. Step 4: Simplify right side
    71,179.44x = 3,864,770,213.99
  5. Step 5: Solve for x
    x = 3,864,770,213.99/71,179.44
  6. Step 6: Final answer
    x = 54,296.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.