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Finding the Fourth Proportional to 323,594.41, 485,358.81 and 86,906.34

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Solution

The fourth proportional to 323,594.41, 485,358.81 and 86,906.34 is: 130,350.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,594.41 : 485,358.81 = 86,906.34 : x
  2. Step 2: Convert to fraction form
    323,594.41/485,358.81 = 86,906.34/x
  3. Step 3: Cross multiply
    323,594.41x = 485,358.81 × 86,906.34
  4. Step 4: Simplify right side
    323,594.41x = 42,180,757,763.86
  5. Step 5: Solve for x
    x = 42,180,757,763.86/323,594.41
  6. Step 6: Final answer
    x = 130,350.70

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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.