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Finding the Fourth Proportional to 323,761.56, 485,346.51 and 113,284.68

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Solution

The fourth proportional to 323,761.56, 485,346.51 and 113,284.68 is: 169,823.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,761.56 : 485,346.51 = 113,284.68 : x
  2. Step 2: Convert to fraction form
    323,761.56/485,346.51 = 113,284.68/x
  3. Step 3: Cross multiply
    323,761.56x = 485,346.51 × 113,284.68
  4. Step 4: Simplify right side
    323,761.56x = 54,982,324,074.47
  5. Step 5: Solve for x
    x = 54,982,324,074.47/323,761.56
  6. Step 6: Final answer
    x = 169,823.51

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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.