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Finding the Fourth Proportional to 323,686.62, 446,711.90 and 187,719.48

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Solution

The fourth proportional to 323,686.62, 446,711.90 and 187,719.48 is: 259,067.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,686.62 : 446,711.90 = 187,719.48 : x
  2. Step 2: Convert to fraction form
    323,686.62/446,711.90 = 187,719.48/x
  3. Step 3: Cross multiply
    323,686.62x = 446,711.90 × 187,719.48
  4. Step 4: Simplify right side
    323,686.62x = 83,856,524,639.21
  5. Step 5: Solve for x
    x = 83,856,524,639.21/323,686.62
  6. Step 6: Final answer
    x = 259,067.01

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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.