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Finding the Fourth Proportional to 116,998.56, 161,448.12 and 69,243.48

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Solution

The fourth proportional to 116,998.56, 161,448.12 and 69,243.48 is: 95,550.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,998.56 : 161,448.12 = 69,243.48 : x
  2. Step 2: Convert to fraction form
    116,998.56/161,448.12 = 69,243.48/x
  3. Step 3: Cross multiply
    116,998.56x = 161,448.12 × 69,243.48
  4. Step 4: Simplify right side
    116,998.56x = 11,179,229,668.26
  5. Step 5: Solve for x
    x = 11,179,229,668.26/116,998.56
  6. Step 6: Final answer
    x = 95,550.15

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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.