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Finding the Fourth Proportional to 267,870, 369,660.60 and 148,638

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Solution

The fourth proportional to 267,870, 369,660.60 and 148,638 is: 205,120.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,870 : 369,660.60 = 148,638 : x
  2. Step 2: Convert to fraction form
    267,870/369,660.60 = 148,638/x
  3. Step 3: Cross multiply
    267,870x = 369,660.60 × 148,638
  4. Step 4: Simplify right side
    267,870x = 54,945,612,262.80
  5. Step 5: Solve for x
    x = 54,945,612,262.80/267,870
  6. Step 6: Final answer
    x = 205,120.44

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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.