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Finding the Fourth Proportional to 203,926.60, 305,889.90 and 156,632.73

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Solution

The fourth proportional to 203,926.60, 305,889.90 and 156,632.73 is: 234,949.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,926.60 : 305,889.90 = 156,632.73 : x
  2. Step 2: Convert to fraction form
    203,926.60/305,889.90 = 156,632.73/x
  3. Step 3: Cross multiply
    203,926.60x = 305,889.90 × 156,632.73
  4. Step 4: Simplify right side
    203,926.60x = 47,912,370,116.43
  5. Step 5: Solve for x
    x = 47,912,370,116.43/203,926.60
  6. Step 6: Final answer
    x = 234,949.10

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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.