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Finding the Fourth Proportional to 68,965.52, 95,172.48 and 39,157.52

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Solution

The fourth proportional to 68,965.52, 95,172.48 and 39,157.52 is: 54,037.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,965.52 : 95,172.48 = 39,157.52 : x
  2. Step 2: Convert to fraction form
    68,965.52/95,172.48 = 39,157.52/x
  3. Step 3: Cross multiply
    68,965.52x = 95,172.48 × 39,157.52
  4. Step 4: Simplify right side
    68,965.52x = 3,726,718,289.05
  5. Step 5: Solve for x
    x = 3,726,718,289.05/68,965.52
  6. Step 6: Final answer
    x = 54,037.41

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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.