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Finding the Fourth Proportional to 339,993.60, 509,844.60 and 171,448.80

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Solution

The fourth proportional to 339,993.60, 509,844.60 and 171,448.80 is: 257,099.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,993.60 : 509,844.60 = 171,448.80 : x
  2. Step 2: Convert to fraction form
    339,993.60/509,844.60 = 171,448.80/x
  3. Step 3: Cross multiply
    339,993.60x = 509,844.60 × 171,448.80
  4. Step 4: Simplify right side
    339,993.60x = 87,412,244,856.48
  5. Step 5: Solve for x
    x = 87,412,244,856.48/339,993.60
  6. Step 6: Final answer
    x = 257,099.68

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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.