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Finding the Fourth Proportional to 71,949.72, 99,264.57 and 41,718.39

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Solution

The fourth proportional to 71,949.72, 99,264.57 and 41,718.39 is: 57,556.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,949.72 : 99,264.57 = 41,718.39 : x
  2. Step 2: Convert to fraction form
    71,949.72/99,264.57 = 41,718.39/x
  3. Step 3: Cross multiply
    71,949.72x = 99,264.57 × 41,718.39
  4. Step 4: Simplify right side
    71,949.72x = 4,141,158,044.44
  5. Step 5: Solve for x
    x = 4,141,158,044.44/71,949.72
  6. Step 6: Final answer
    x = 57,556.28

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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.