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Finding the Fourth Proportional to 118,211.92, 177,317.88 and 50,728.38

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Solution

The fourth proportional to 118,211.92, 177,317.88 and 50,728.38 is: 76,092.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,211.92 : 177,317.88 = 50,728.38 : x
  2. Step 2: Convert to fraction form
    118,211.92/177,317.88 = 50,728.38/x
  3. Step 3: Cross multiply
    118,211.92x = 177,317.88 × 50,728.38
  4. Step 4: Simplify right side
    118,211.92x = 8,995,048,797.43
  5. Step 5: Solve for x
    x = 8,995,048,797.43/118,211.92
  6. Step 6: Final answer
    x = 76,092.57

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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.