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Finding the Fourth Proportional to 271,575.81, 374,819.67 and 158,398.56

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Solution

The fourth proportional to 271,575.81, 374,819.67 and 158,398.56 is: 218,616.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,575.81 : 374,819.67 = 158,398.56 : x
  2. Step 2: Convert to fraction form
    271,575.81/374,819.67 = 158,398.56/x
  3. Step 3: Cross multiply
    271,575.81x = 374,819.67 × 158,398.56
  4. Step 4: Simplify right side
    271,575.81x = 59,370,895,987.68
  5. Step 5: Solve for x
    x = 59,370,895,987.68/271,575.81
  6. Step 6: Final answer
    x = 218,616.29

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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.