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Finding the Fourth Proportional to 363,617.18, 545,450.61 and 123,633.38

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Solution

The fourth proportional to 363,617.18, 545,450.61 and 123,633.38 is: 185,458.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,617.18 : 545,450.61 = 123,633.38 : x
  2. Step 2: Convert to fraction form
    363,617.18/545,450.61 = 123,633.38/x
  3. Step 3: Cross multiply
    363,617.18x = 545,450.61 × 123,633.38
  4. Step 4: Simplify right side
    363,617.18x = 67,435,902,537.36
  5. Step 5: Solve for x
    x = 67,435,902,537.36/363,617.18
  6. Step 6: Final answer
    x = 185,458.52

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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.