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Finding the Fourth Proportional to 227,485.16, 313,936.26 and 126,881

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Solution

The fourth proportional to 227,485.16, 313,936.26 and 126,881 is: 175,099.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,485.16 : 313,936.26 = 126,881 : x
  2. Step 2: Convert to fraction form
    227,485.16/313,936.26 = 126,881/x
  3. Step 3: Cross multiply
    227,485.16x = 313,936.26 × 126,881
  4. Step 4: Simplify right side
    227,485.16x = 39,832,546,605.06
  5. Step 5: Solve for x
    x = 39,832,546,605.06/227,485.16
  6. Step 6: Final answer
    x = 175,099.54

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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.