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Finding the Fourth Proportional to 149,952.80, 206,800.81 and 124,418.73

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Solution

The fourth proportional to 149,952.80, 206,800.81 and 124,418.73 is: 171,586.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,952.80 : 206,800.81 = 124,418.73 : x
  2. Step 2: Convert to fraction form
    149,952.80/206,800.81 = 124,418.73/x
  3. Step 3: Cross multiply
    149,952.80x = 206,800.81 × 124,418.73
  4. Step 4: Simplify right side
    149,952.80x = 25,729,894,143.17
  5. Step 5: Solve for x
    x = 25,729,894,143.17/149,952.80
  6. Step 6: Final answer
    x = 171,586.63

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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.