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Finding the Fourth Proportional to 225,103.28, 337,655.48 and 91,983.54

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Solution

The fourth proportional to 225,103.28, 337,655.48 and 91,983.54 is: 137,975.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,103.28 : 337,655.48 = 91,983.54 : x
  2. Step 2: Convert to fraction form
    225,103.28/337,655.48 = 91,983.54/x
  3. Step 3: Cross multiply
    225,103.28x = 337,655.48 × 91,983.54
  4. Step 4: Simplify right side
    225,103.28x = 31,058,747,502.03
  5. Step 5: Solve for x
    x = 31,058,747,502.03/225,103.28
  6. Step 6: Final answer
    x = 137,975.55

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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.