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Finding the Fourth Proportional to 269,611.44, 372,065.16 and 148,752.78

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Solution

The fourth proportional to 269,611.44, 372,065.16 and 148,752.78 is: 205,279.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,611.44 : 372,065.16 = 148,752.78 : x
  2. Step 2: Convert to fraction form
    269,611.44/372,065.16 = 148,752.78/x
  3. Step 3: Cross multiply
    269,611.44x = 372,065.16 × 148,752.78
  4. Step 4: Simplify right side
    269,611.44x = 55,345,726,891.14
  5. Step 5: Solve for x
    x = 55,345,726,891.14/269,611.44
  6. Step 6: Final answer
    x = 205,279.59

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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.