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Finding the Fourth Proportional to 339,209.45, 508,824.97 and 170,637.65

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Solution

The fourth proportional to 339,209.45, 508,824.97 and 170,637.65 is: 255,961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,209.45 : 508,824.97 = 170,637.65 : x
  2. Step 2: Convert to fraction form
    339,209.45/508,824.97 = 170,637.65/x
  3. Step 3: Cross multiply
    339,209.45x = 508,824.97 × 170,637.65
  4. Step 4: Simplify right side
    339,209.45x = 86,824,694,171.40
  5. Step 5: Solve for x
    x = 86,824,694,171.40/339,209.45
  6. Step 6: Final answer
    x = 255,961.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.