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Finding the Fourth Proportional to 308,062.44, 425,121.48 and 172,098.34

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Solution

The fourth proportional to 308,062.44, 425,121.48 and 172,098.34 is: 237,493.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,062.44 : 425,121.48 = 172,098.34 : x
  2. Step 2: Convert to fraction form
    308,062.44/425,121.48 = 172,098.34/x
  3. Step 3: Cross multiply
    308,062.44x = 425,121.48 × 172,098.34
  4. Step 4: Simplify right side
    308,062.44x = 73,162,699,943.54
  5. Step 5: Solve for x
    x = 73,162,699,943.54/308,062.44
  6. Step 6: Final answer
    x = 237,493.09

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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.