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Finding the Fourth Proportional to 363,503.97, 545,367.20 and 186,136.52

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Solution

The fourth proportional to 363,503.97, 545,367.20 and 186,136.52 is: 279,261.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,503.97 : 545,367.20 = 186,136.52 : x
  2. Step 2: Convert to fraction form
    363,503.97/545,367.20 = 186,136.52/x
  3. Step 3: Cross multiply
    363,503.97x = 545,367.20 × 186,136.52
  4. Step 4: Simplify right side
    363,503.97x = 101,512,749,072.63
  5. Step 5: Solve for x
    x = 101,512,749,072.63/363,503.97
  6. Step 6: Final answer
    x = 279,261.73

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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.