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Finding the Fourth Proportional to 271,187.88, 374,286.87 and 156,446.52

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Solution

The fourth proportional to 271,187.88, 374,286.87 and 156,446.52 is: 215,923.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,187.88 : 374,286.87 = 156,446.52 : x
  2. Step 2: Convert to fraction form
    271,187.88/374,286.87 = 156,446.52/x
  3. Step 3: Cross multiply
    271,187.88x = 374,286.87 × 156,446.52
  4. Step 4: Simplify right side
    271,187.88x = 58,555,878,293.19
  5. Step 5: Solve for x
    x = 58,555,878,293.19/271,187.88
  6. Step 6: Final answer
    x = 215,923.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.