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Finding the Fourth Proportional to 203,799.58, 305,699.07 and 133,662.46

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Solution

The fourth proportional to 203,799.58, 305,699.07 and 133,662.46 is: 200,493.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,799.58 : 305,699.07 = 133,662.46 : x
  2. Step 2: Convert to fraction form
    203,799.58/305,699.07 = 133,662.46/x
  3. Step 3: Cross multiply
    203,799.58x = 305,699.07 × 133,662.46
  4. Step 4: Simplify right side
    203,799.58x = 40,860,489,715.91
  5. Step 5: Solve for x
    x = 40,860,489,715.91/203,799.58
  6. Step 6: Final answer
    x = 200,493.49

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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.