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Finding the Fourth Proportional to 258,937.97, 388,251.43 and 101,240.69

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Solution

The fourth proportional to 258,937.97, 388,251.43 and 101,240.69 is: 151,800.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,937.97 : 388,251.43 = 101,240.69 : x
  2. Step 2: Convert to fraction form
    258,937.97/388,251.43 = 101,240.69/x
  3. Step 3: Cross multiply
    258,937.97x = 388,251.43 × 101,240.69
  4. Step 4: Simplify right side
    258,937.97x = 39,306,840,472.33
  5. Step 5: Solve for x
    x = 39,306,840,472.33/258,937.97
  6. Step 6: Final answer
    x = 151,800.22

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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.