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Finding the Fourth Proportional to 119,991.48, 165,608.54 and 69,719.64

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Solution

The fourth proportional to 119,991.48, 165,608.54 and 69,719.64 is: 96,224.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,991.48 : 165,608.54 = 69,719.64 : x
  2. Step 2: Convert to fraction form
    119,991.48/165,608.54 = 69,719.64/x
  3. Step 3: Cross multiply
    119,991.48x = 165,608.54 × 69,719.64
  4. Step 4: Simplify right side
    119,991.48x = 11,546,167,789.73
  5. Step 5: Solve for x
    x = 11,546,167,789.73/119,991.48
  6. Step 6: Final answer
    x = 96,224.90

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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.