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Finding the Fourth Proportional to 363,396.48, 545,144.59 and 123,445.97

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Solution

The fourth proportional to 363,396.48, 545,144.59 and 123,445.97 is: 185,185.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,396.48 : 545,144.59 = 123,445.97 : x
  2. Step 2: Convert to fraction form
    363,396.48/545,144.59 = 123,445.97/x
  3. Step 3: Cross multiply
    363,396.48x = 545,144.59 × 123,445.97
  4. Step 4: Simplify right side
    363,396.48x = 67,295,902,175.68
  5. Step 5: Solve for x
    x = 67,295,902,175.68/363,396.48
  6. Step 6: Final answer
    x = 185,185.90

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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.