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Finding the Fourth Proportional to 324,204.60, 485,961.30 and 124,447.80

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Solution

The fourth proportional to 324,204.60, 485,961.30 and 124,447.80 is: 186,539.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,204.60 : 485,961.30 = 124,447.80 : x
  2. Step 2: Convert to fraction form
    324,204.60/485,961.30 = 124,447.80/x
  3. Step 3: Cross multiply
    324,204.60x = 485,961.30 × 124,447.80
  4. Step 4: Simplify right side
    324,204.60x = 60,476,814,670.14
  5. Step 5: Solve for x
    x = 60,476,814,670.14/324,204.60
  6. Step 6: Final answer
    x = 186,539.04

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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.