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Finding the Fourth Proportional to 116,696.70, 161,034.89 and 68,954.49

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Solution

The fourth proportional to 116,696.70, 161,034.89 and 68,954.49 is: 95,153.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,696.70 : 161,034.89 = 68,954.49 : x
  2. Step 2: Convert to fraction form
    116,696.70/161,034.89 = 68,954.49/x
  3. Step 3: Cross multiply
    116,696.70x = 161,034.89 × 68,954.49
  4. Step 4: Simplify right side
    116,696.70x = 11,104,078,367.38
  5. Step 5: Solve for x
    x = 11,104,078,367.38/116,696.70
  6. Step 6: Final answer
    x = 95,153.32

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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.