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Finding the Fourth Proportional to 363,396.96, 545,145.31 and 123,446.44

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Solution

The fourth proportional to 363,396.96, 545,145.31 and 123,446.44 is: 185,186.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,396.96 : 545,145.31 = 123,446.44 : x
  2. Step 2: Convert to fraction form
    363,396.96/545,145.31 = 123,446.44/x
  3. Step 3: Cross multiply
    363,396.96x = 545,145.31 × 123,446.44
  4. Step 4: Simplify right side
    363,396.96x = 67,296,248,637.94
  5. Step 5: Solve for x
    x = 67,296,248,637.94/363,396.96
  6. Step 6: Final answer
    x = 185,186.60

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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.