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Finding the Fourth Proportional to 269,806.66, 372,314.10 and 148,928.56

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Solution

The fourth proportional to 269,806.66, 372,314.10 and 148,928.56 is: 205,510.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,806.66 : 372,314.10 = 148,928.56 : x
  2. Step 2: Convert to fraction form
    269,806.66/372,314.10 = 148,928.56/x
  3. Step 3: Cross multiply
    269,806.66x = 372,314.10 × 148,928.56
  4. Step 4: Simplify right side
    269,806.66x = 55,448,202,780.70
  5. Step 5: Solve for x
    x = 55,448,202,780.70/269,806.66
  6. Step 6: Final answer
    x = 205,510.88

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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.