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Finding the Fourth Proportional to 269,640.49, 372,100.96 and 148,786.87

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Solution

The fourth proportional to 269,640.49, 372,100.96 and 148,786.87 is: 205,324.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,640.49 : 372,100.96 = 148,786.87 : x
  2. Step 2: Convert to fraction form
    269,640.49/372,100.96 = 148,786.87/x
  3. Step 3: Cross multiply
    269,640.49x = 372,100.96 × 148,786.87
  4. Step 4: Simplify right side
    269,640.49x = 55,363,736,418.46
  5. Step 5: Solve for x
    x = 55,363,736,418.46/269,640.49
  6. Step 6: Final answer
    x = 205,324.27

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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.