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Finding the Fourth Proportional to 267,791.40, 401,686.70 and 109,908.63

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Solution

The fourth proportional to 267,791.40, 401,686.70 and 109,908.63 is: 164,862.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,791.40 : 401,686.70 = 109,908.63 : x
  2. Step 2: Convert to fraction form
    267,791.40/401,686.70 = 109,908.63/x
  3. Step 3: Cross multiply
    267,791.40x = 401,686.70 × 109,908.63
  4. Step 4: Simplify right side
    267,791.40x = 44,148,834,336.68
  5. Step 5: Solve for x
    x = 44,148,834,336.68/267,791.40
  6. Step 6: Final answer
    x = 164,862.78

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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.