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Finding the Fourth Proportional to 339,162.57, 508,738.59 and 114,680.66

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Solution

The fourth proportional to 339,162.57, 508,738.59 and 114,680.66 is: 172,019.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,162.57 : 508,738.59 = 114,680.66 : x
  2. Step 2: Convert to fraction form
    339,162.57/508,738.59 = 114,680.66/x
  3. Step 3: Cross multiply
    339,162.57x = 508,738.59 × 114,680.66
  4. Step 4: Simplify right side
    339,162.57x = 58,342,474,724.98
  5. Step 5: Solve for x
    x = 58,342,474,724.98/339,162.57
  6. Step 6: Final answer
    x = 172,019.20

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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.