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Finding the Fourth Proportional to 203,716.80, 305,575.20 and 192,052.80

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Solution

The fourth proportional to 203,716.80, 305,575.20 and 192,052.80 is: 288,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,716.80 : 305,575.20 = 192,052.80 : x
  2. Step 2: Convert to fraction form
    203,716.80/305,575.20 = 192,052.80/x
  3. Step 3: Cross multiply
    203,716.80x = 305,575.20 × 192,052.80
  4. Step 4: Simplify right side
    203,716.80x = 58,686,572,770.56
  5. Step 5: Solve for x
    x = 58,686,572,770.56/203,716.80
  6. Step 6: Final answer
    x = 288,079.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.