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Finding the Fourth Proportional to 325,794.96, 488,351.28 and 136,363.80

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Solution

The fourth proportional to 325,794.96, 488,351.28 and 136,363.80 is: 204,402.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,794.96 : 488,351.28 = 136,363.80 : x
  2. Step 2: Convert to fraction form
    325,794.96/488,351.28 = 136,363.80/x
  3. Step 3: Cross multiply
    325,794.96x = 488,351.28 × 136,363.80
  4. Step 4: Simplify right side
    325,794.96x = 66,593,436,275.66
  5. Step 5: Solve for x
    x = 66,593,436,275.66/325,794.96
  6. Step 6: Final answer
    x = 204,402.91

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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.