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Finding the Fourth Proportional to 264,990.55, 397,488.23 and 75,450.79

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Solution

The fourth proportional to 264,990.55, 397,488.23 and 75,450.79 is: 113,176.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,990.55 : 397,488.23 = 75,450.79 : x
  2. Step 2: Convert to fraction form
    264,990.55/397,488.23 = 75,450.79/x
  3. Step 3: Cross multiply
    264,990.55x = 397,488.23 × 75,450.79
  4. Step 4: Simplify right side
    264,990.55x = 29,990,800,164.11
  5. Step 5: Solve for x
    x = 29,990,800,164.11/264,990.55
  6. Step 6: Final answer
    x = 113,176.87

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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.