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Finding the Fourth Proportional to 404,310.72, 606,685.32 and 167,815.56

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Solution

The fourth proportional to 404,310.72, 606,685.32 and 167,815.56 is: 251,814.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,310.72 : 606,685.32 = 167,815.56 : x
  2. Step 2: Convert to fraction form
    404,310.72/606,685.32 = 167,815.56/x
  3. Step 3: Cross multiply
    404,310.72x = 606,685.32 × 167,815.56
  4. Step 4: Simplify right side
    404,310.72x = 101,811,236,719.58
  5. Step 5: Solve for x
    x = 101,811,236,719.58/404,310.72
  6. Step 6: Final answer
    x = 251,814.34

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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.