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Finding the Fourth Proportional to 271,875.67, 407,809.23 and 66,712.52

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Solution

The fourth proportional to 271,875.67, 407,809.23 and 66,712.52 is: 100,067.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,875.67 : 407,809.23 = 66,712.52 : x
  2. Step 2: Convert to fraction form
    271,875.67/407,809.23 = 66,712.52/x
  3. Step 3: Cross multiply
    271,875.67x = 407,809.23 × 66,712.52
  4. Step 4: Simplify right side
    271,875.67x = 27,205,981,412.56
  5. Step 5: Solve for x
    x = 27,205,981,412.56/271,875.67
  6. Step 6: Final answer
    x = 100,067.73

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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.