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Finding the Fourth Proportional to 435,140.72, 652,694.67 and 119,589.42

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Solution

The fourth proportional to 435,140.72, 652,694.67 and 119,589.42 is: 179,379.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,140.72 : 652,694.67 = 119,589.42 : x
  2. Step 2: Convert to fraction form
    435,140.72/652,694.67 = 119,589.42/x
  3. Step 3: Cross multiply
    435,140.72x = 652,694.67 × 119,589.42
  4. Step 4: Simplify right side
    435,140.72x = 78,055,377,022.39
  5. Step 5: Solve for x
    x = 78,055,377,022.39/435,140.72
  6. Step 6: Final answer
    x = 179,379.62

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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.