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Finding the Fourth Proportional to 119,448.09, 164,845.17 and 68,469.30

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Solution

The fourth proportional to 119,448.09, 164,845.17 and 68,469.30 is: 94,491.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,448.09 : 164,845.17 = 68,469.30 : x
  2. Step 2: Convert to fraction form
    119,448.09/164,845.17 = 68,469.30/x
  3. Step 3: Cross multiply
    119,448.09x = 164,845.17 × 68,469.30
  4. Step 4: Simplify right side
    119,448.09x = 11,286,833,398.28
  5. Step 5: Solve for x
    x = 11,286,833,398.28/119,448.09
  6. Step 6: Final answer
    x = 94,491.54

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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.