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Finding the Fourth Proportional to 253,843.77, 350,315.78 and 140,659.23

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Solution

The fourth proportional to 253,843.77, 350,315.78 and 140,659.23 is: 194,116.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,843.77 : 350,315.78 = 140,659.23 : x
  2. Step 2: Convert to fraction form
    253,843.77/350,315.78 = 140,659.23/x
  3. Step 3: Cross multiply
    253,843.77x = 350,315.78 × 140,659.23
  4. Step 4: Simplify right side
    253,843.77x = 49,275,147,168.35
  5. Step 5: Solve for x
    x = 49,275,147,168.35/253,843.77
  6. Step 6: Final answer
    x = 194,116.04

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1.5x scale

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.