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Finding the Fourth Proportional to 267,205.80, 401,067.90 and 134,236.20

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Solution

The fourth proportional to 267,205.80, 401,067.90 and 134,236.20 is: 201,484.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,205.80 : 401,067.90 = 134,236.20 : x
  2. Step 2: Convert to fraction form
    267,205.80/401,067.90 = 134,236.20/x
  3. Step 3: Cross multiply
    267,205.80x = 401,067.90 × 134,236.20
  4. Step 4: Simplify right side
    267,205.80x = 53,837,830,837.98
  5. Step 5: Solve for x
    x = 53,837,830,837.98/267,205.80
  6. Step 6: Final answer
    x = 201,484.51

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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.