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Finding the Fourth Proportional to 228,876.84, 315,844.38 and 126,902.70

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Solution

The fourth proportional to 228,876.84, 315,844.38 and 126,902.70 is: 175,122.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,876.84 : 315,844.38 = 126,902.70 : x
  2. Step 2: Convert to fraction form
    228,876.84/315,844.38 = 126,902.70/x
  3. Step 3: Cross multiply
    228,876.84x = 315,844.38 × 126,902.70
  4. Step 4: Simplify right side
    228,876.84x = 40,081,504,601.83
  5. Step 5: Solve for x
    x = 40,081,504,601.83/228,876.84
  6. Step 6: Final answer
    x = 175,122.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.