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Finding the Fourth Proportional to 363,142.70, 544,539.09 and 126,480.14

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Solution

The fourth proportional to 363,142.70, 544,539.09 and 126,480.14 is: 189,659.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,142.70 : 544,539.09 = 126,480.14 : x
  2. Step 2: Convert to fraction form
    363,142.70/544,539.09 = 126,480.14/x
  3. Step 3: Cross multiply
    363,142.70x = 544,539.09 × 126,480.14
  4. Step 4: Simplify right side
    363,142.70x = 68,873,380,338.67
  5. Step 5: Solve for x
    x = 68,873,380,338.67/363,142.70
  6. Step 6: Final answer
    x = 189,659.27

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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.