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Finding the Fourth Proportional to 363,448.44, 545,245.80 and 126,727.56

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Solution

The fourth proportional to 363,448.44, 545,245.80 and 126,727.56 is: 190,116.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,448.44 : 545,245.80 = 126,727.56 : x
  2. Step 2: Convert to fraction form
    363,448.44/545,245.80 = 126,727.56/x
  3. Step 3: Cross multiply
    363,448.44x = 545,245.80 × 126,727.56
  4. Step 4: Simplify right side
    363,448.44x = 69,097,669,834.25
  5. Step 5: Solve for x
    x = 69,097,669,834.25/363,448.44
  6. Step 6: Final answer
    x = 190,116.84

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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.