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Finding the Fourth Proportional to 293,542.63, 405,081.99 and 172,691.71

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Solution

The fourth proportional to 293,542.63, 405,081.99 and 172,691.71 is: 238,310.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,542.63 : 405,081.99 = 172,691.71 : x
  2. Step 2: Convert to fraction form
    293,542.63/405,081.99 = 172,691.71/x
  3. Step 3: Cross multiply
    293,542.63x = 405,081.99 × 172,691.71
  4. Step 4: Simplify right side
    293,542.63x = 69,954,300,530.60
  5. Step 5: Solve for x
    x = 69,954,300,530.60/293,542.63
  6. Step 6: Final answer
    x = 238,310.53

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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.