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Finding the Fourth Proportional to 271,759.78, 374,944.39 and 156,996.54

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Solution

The fourth proportional to 271,759.78, 374,944.39 and 156,996.54 is: 216,606.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,759.78 : 374,944.39 = 156,996.54 : x
  2. Step 2: Convert to fraction form
    271,759.78/374,944.39 = 156,996.54/x
  3. Step 3: Cross multiply
    271,759.78x = 374,944.39 × 156,996.54
  4. Step 4: Simplify right side
    271,759.78x = 58,864,971,922.41
  5. Step 5: Solve for x
    x = 58,864,971,922.41/271,759.78
  6. Step 6: Final answer
    x = 216,606.64

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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.