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Finding the Fourth Proportional to 253,729.62, 350,168.22 and 140,562.90

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Solution

The fourth proportional to 253,729.62, 350,168.22 and 140,562.90 is: 193,988.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,729.62 : 350,168.22 = 140,562.90 : x
  2. Step 2: Convert to fraction form
    253,729.62/350,168.22 = 140,562.90/x
  3. Step 3: Cross multiply
    253,729.62x = 350,168.22 × 140,562.90
  4. Step 4: Simplify right side
    253,729.62x = 49,220,660,491.04
  5. Step 5: Solve for x
    x = 49,220,660,491.04/253,729.62
  6. Step 6: Final answer
    x = 193,988.63

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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.