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Finding the Fourth Proportional to 323,801.64, 485,408.43 and 113,324.76

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Solution

The fourth proportional to 323,801.64, 485,408.43 and 113,324.76 is: 169,884.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,801.64 : 485,408.43 = 113,324.76 : x
  2. Step 2: Convert to fraction form
    323,801.64/485,408.43 = 113,324.76/x
  3. Step 3: Cross multiply
    323,801.64x = 485,408.43 × 113,324.76
  4. Step 4: Simplify right side
    323,801.64x = 55,008,793,831.73
  5. Step 5: Solve for x
    x = 55,008,793,831.73/323,801.64
  6. Step 6: Final answer
    x = 169,884.23

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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.