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Finding the Fourth Proportional to 267,638.82, 401,108.27 and 109,682.34

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Solution

The fourth proportional to 267,638.82, 401,108.27 and 109,682.34 is: 164,380.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,638.82 : 401,108.27 = 109,682.34 : x
  2. Step 2: Convert to fraction form
    267,638.82/401,108.27 = 109,682.34/x
  3. Step 3: Cross multiply
    267,638.82x = 401,108.27 × 109,682.34
  4. Step 4: Simplify right side
    267,638.82x = 43,994,493,646.95
  5. Step 5: Solve for x
    x = 43,994,493,646.95/267,638.82
  6. Step 6: Final answer
    x = 164,380.09

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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.