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Finding the Fourth Proportional to 323,813.10, 446,851.58 and 178,618.54

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Solution

The fourth proportional to 323,813.10, 446,851.58 and 178,618.54 is: 246,487.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,813.10 : 446,851.58 = 178,618.54 : x
  2. Step 2: Convert to fraction form
    323,813.10/446,851.58 = 178,618.54/x
  3. Step 3: Cross multiply
    323,813.10x = 446,851.58 × 178,618.54
  4. Step 4: Simplify right side
    323,813.10x = 79,815,976,816.29
  5. Step 5: Solve for x
    x = 79,815,976,816.29/323,813.10
  6. Step 6: Final answer
    x = 246,487.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.