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Finding the Fourth Proportional to 203,608.90, 303,760.10 and 192,586.42

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Solution

The fourth proportional to 203,608.90, 303,760.10 and 192,586.42 is: 287,315.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,608.90 : 303,760.10 = 192,586.42 : x
  2. Step 2: Convert to fraction form
    203,608.90/303,760.10 = 192,586.42/x
  3. Step 3: Cross multiply
    203,608.90x = 303,760.10 × 192,586.42
  4. Step 4: Simplify right side
    203,608.90x = 58,500,071,059.01
  5. Step 5: Solve for x
    x = 58,500,071,059.01/203,608.90
  6. Step 6: Final answer
    x = 287,315.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.