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Finding the Fourth Proportional to 323,908.65, 485,863.02 and 173,942.64

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Solution

The fourth proportional to 323,908.65, 485,863.02 and 173,942.64 is: 260,913.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,908.65 : 485,863.02 = 173,942.64 : x
  2. Step 2: Convert to fraction form
    323,908.65/485,863.02 = 173,942.64/x
  3. Step 3: Cross multiply
    323,908.65x = 485,863.02 × 173,942.64
  4. Step 4: Simplify right side
    323,908.65x = 84,512,296,377.17
  5. Step 5: Solve for x
    x = 84,512,296,377.17/323,908.65
  6. Step 6: Final answer
    x = 260,913.98

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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.