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Finding the Fourth Proportional to 320,685.38, 481,167.58 and 201,016.58

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Solution

The fourth proportional to 320,685.38, 481,167.58 and 201,016.58 is: 301,612.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,685.38 : 481,167.58 = 201,016.58 : x
  2. Step 2: Convert to fraction form
    320,685.38/481,167.58 = 201,016.58/x
  3. Step 3: Cross multiply
    320,685.38x = 481,167.58 × 201,016.58
  4. Step 4: Simplify right side
    320,685.38x = 96,722,661,338.48
  5. Step 5: Solve for x
    x = 96,722,661,338.48/320,685.38
  6. Step 6: Final answer
    x = 301,612.32

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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.