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Finding the Fourth Proportional to 339,866.25, 469,027.45 and 186,916.25

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Solution

The fourth proportional to 339,866.25, 469,027.45 and 186,916.25 is: 257,951.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,866.25 : 469,027.45 = 186,916.25 : x
  2. Step 2: Convert to fraction form
    339,866.25/469,027.45 = 186,916.25/x
  3. Step 3: Cross multiply
    339,866.25x = 469,027.45 × 186,916.25
  4. Step 4: Simplify right side
    339,866.25x = 87,668,853,507.28
  5. Step 5: Solve for x
    x = 87,668,853,507.28/339,866.25
  6. Step 6: Final answer
    x = 257,951.05

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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.