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Finding the Fourth Proportional to 325,578.65, 488,667.69 and 165,768.80

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Solution

The fourth proportional to 325,578.65, 488,667.69 and 165,768.80 is: 248,805.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,578.65 : 488,667.69 = 165,768.80 : x
  2. Step 2: Convert to fraction form
    325,578.65/488,667.69 = 165,768.80/x
  3. Step 3: Cross multiply
    325,578.65x = 488,667.69 × 165,768.80
  4. Step 4: Simplify right side
    325,578.65x = 81,005,854,126.73
  5. Step 5: Solve for x
    x = 81,005,854,126.73/325,578.65
  6. Step 6: Final answer
    x = 248,805.80

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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.