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Finding the Fourth Proportional to 339,958.41, 469,154.12 and 187,007.97

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Solution

The fourth proportional to 339,958.41, 469,154.12 and 187,007.97 is: 258,077.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,958.41 : 469,154.12 = 187,007.97 : x
  2. Step 2: Convert to fraction form
    339,958.41/469,154.12 = 187,007.97/x
  3. Step 3: Cross multiply
    339,958.41x = 469,154.12 × 187,007.97
  4. Step 4: Simplify right side
    339,958.41x = 87,735,558,663.30
  5. Step 5: Solve for x
    x = 87,735,558,663.30/339,958.41
  6. Step 6: Final answer
    x = 258,077.33

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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.