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Finding the Fourth Proportional to 258,233.33, 387,372.33 and 71,244.83

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Solution

The fourth proportional to 258,233.33, 387,372.33 and 71,244.83 is: 106,873.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,233.33 : 387,372.33 = 71,244.83 : x
  2. Step 2: Convert to fraction form
    258,233.33/387,372.33 = 71,244.83/x
  3. Step 3: Cross multiply
    258,233.33x = 387,372.33 × 71,244.83
  4. Step 4: Simplify right side
    258,233.33x = 27,598,275,797.55
  5. Step 5: Solve for x
    x = 27,598,275,797.55/258,233.33
  6. Step 6: Final answer
    x = 106,873.41

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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.