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Finding the Fourth Proportional to 339,954.29, 469,148.42 and 187,003.85

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Solution

The fourth proportional to 339,954.29, 469,148.42 and 187,003.85 is: 258,071.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,954.29 : 469,148.42 = 187,003.85 : x
  2. Step 2: Convert to fraction form
    339,954.29/469,148.42 = 187,003.85/x
  3. Step 3: Cross multiply
    339,954.29x = 469,148.42 × 187,003.85
  4. Step 4: Simplify right side
    339,954.29x = 87,732,558,883.18
  5. Step 5: Solve for x
    x = 87,732,558,883.18/339,954.29
  6. Step 6: Final answer
    x = 258,071.64

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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.