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Finding the Fourth Proportional to 201,799.20, 302,115.60 and 123,067.20

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Solution

The fourth proportional to 201,799.20, 302,115.60 and 123,067.20 is: 184,245.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,799.20 : 302,115.60 = 123,067.20 : x
  2. Step 2: Convert to fraction form
    201,799.20/302,115.60 = 123,067.20/x
  3. Step 3: Cross multiply
    201,799.20x = 302,115.60 × 123,067.20
  4. Step 4: Simplify right side
    201,799.20x = 37,180,520,968.32
  5. Step 5: Solve for x
    x = 37,180,520,968.32/201,799.20
  6. Step 6: Final answer
    x = 184,245.14

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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.