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Finding the Fourth Proportional to 117,270.97, 161,834.22 and 63,555.97

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Solution

The fourth proportional to 117,270.97, 161,834.22 and 63,555.97 is: 87,707.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,270.97 : 161,834.22 = 63,555.97 : x
  2. Step 2: Convert to fraction form
    117,270.97/161,834.22 = 63,555.97/x
  3. Step 3: Cross multiply
    117,270.97x = 161,834.22 × 63,555.97
  4. Step 4: Simplify right side
    117,270.97x = 10,285,530,513.51
  5. Step 5: Solve for x
    x = 10,285,530,513.51/117,270.97
  6. Step 6: Final answer
    x = 87,707.39

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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.