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Finding the Fourth Proportional to 117,207.54, 161,744.94 and 63,491.22

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Solution

The fourth proportional to 117,207.54, 161,744.94 and 63,491.22 is: 87,617.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,207.54 : 161,744.94 = 63,491.22 : x
  2. Step 2: Convert to fraction form
    117,207.54/161,744.94 = 63,491.22/x
  3. Step 3: Cross multiply
    117,207.54x = 161,744.94 × 63,491.22
  4. Step 4: Simplify right side
    117,207.54x = 10,269,383,569.43
  5. Step 5: Solve for x
    x = 10,269,383,569.43/117,207.54
  6. Step 6: Final answer
    x = 87,617.09

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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.