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Finding the Fourth Proportional to 71,857.22, 99,164.00 and 41,644.63

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Solution

The fourth proportional to 71,857.22, 99,164.00 and 41,644.63 is: 57,470.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,857.22 : 99,164.00 = 41,644.63 : x
  2. Step 2: Convert to fraction form
    71,857.22/99,164.00 = 41,644.63/x
  3. Step 3: Cross multiply
    71,857.22x = 99,164.00 × 41,644.63
  4. Step 4: Simplify right side
    71,857.22x = 4,129,647,385.28
  5. Step 5: Solve for x
    x = 4,129,647,385.28/71,857.22
  6. Step 6: Final answer
    x = 57,470.18

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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.