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Finding the Fourth Proportional to 74,156.43, 111,233.71 and 17,997

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Solution

The fourth proportional to 74,156.43, 111,233.71 and 17,997 is: 26,995.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,156.43 : 111,233.71 = 17,997 : x
  2. Step 2: Convert to fraction form
    74,156.43/111,233.71 = 17,997/x
  3. Step 3: Cross multiply
    74,156.43x = 111,233.71 × 17,997
  4. Step 4: Simplify right side
    74,156.43x = 2,001,873,033.88
  5. Step 5: Solve for x
    x = 2,001,873,033.88/74,156.43
  6. Step 6: Final answer
    x = 26,995.27

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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.