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Finding the Fourth Proportional to 141,891.89, 212,976.34 and 117,183.65

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Solution

The fourth proportional to 141,891.89, 212,976.34 and 117,183.65 is: 175,889.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,891.89 : 212,976.34 = 117,183.65 : x
  2. Step 2: Convert to fraction form
    141,891.89/212,976.34 = 117,183.65/x
  3. Step 3: Cross multiply
    141,891.89x = 212,976.34 × 117,183.65
  4. Step 4: Simplify right side
    141,891.89x = 24,957,343,527.00
  5. Step 5: Solve for x
    x = 24,957,343,527.00/141,891.89
  6. Step 6: Final answer
    x = 175,889.86

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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.