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Finding the Fourth Proportional to 203,793.20, 305,106.60 and 180,465.20

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Solution

The fourth proportional to 203,793.20, 305,106.60 and 180,465.20 is: 270,181.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,793.20 : 305,106.60 = 180,465.20 : x
  2. Step 2: Convert to fraction form
    203,793.20/305,106.60 = 180,465.20/x
  3. Step 3: Cross multiply
    203,793.20x = 305,106.60 × 180,465.20
  4. Step 4: Simplify right side
    203,793.20x = 55,061,123,590.32
  5. Step 5: Solve for x
    x = 55,061,123,590.32/203,793.20
  6. Step 6: Final answer
    x = 270,181.36

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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.