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Finding the Fourth Proportional to 323,873.70, 485,795.16 and 113,495.64

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Solution

The fourth proportional to 323,873.70, 485,795.16 and 113,495.64 is: 170,238.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,873.70 : 485,795.16 = 113,495.64 : x
  2. Step 2: Convert to fraction form
    323,873.70/485,795.16 = 113,495.64/x
  3. Step 3: Cross multiply
    323,873.70x = 485,795.16 × 113,495.64
  4. Step 4: Simplify right side
    323,873.70x = 55,135,632,593.10
  5. Step 5: Solve for x
    x = 55,135,632,593.10/323,873.70
  6. Step 6: Final answer
    x = 170,238.07

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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.