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Finding the Fourth Proportional to 363,563.07, 545,593.72 and 126,905.73

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Solution

The fourth proportional to 363,563.07, 545,593.72 and 126,905.73 is: 190,445.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,563.07 : 545,593.72 = 126,905.73 : x
  2. Step 2: Convert to fraction form
    363,563.07/545,593.72 = 126,905.73/x
  3. Step 3: Cross multiply
    363,563.07x = 545,593.72 × 126,905.73
  4. Step 4: Simplify right side
    363,563.07x = 69,238,969,320.02
  5. Step 5: Solve for x
    x = 69,238,969,320.02/363,563.07
  6. Step 6: Final answer
    x = 190,445.55

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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.