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Finding the Fourth Proportional to 165,717.92, 248,480.88 and 113,190.88

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Solution

The fourth proportional to 165,717.92, 248,480.88 and 113,190.88 is: 169,720.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,717.92 : 248,480.88 = 113,190.88 : x
  2. Step 2: Convert to fraction form
    165,717.92/248,480.88 = 113,190.88/x
  3. Step 3: Cross multiply
    165,717.92x = 248,480.88 × 113,190.88
  4. Step 4: Simplify right side
    165,717.92x = 28,125,769,470.37
  5. Step 5: Solve for x
    x = 28,125,769,470.37/165,717.92
  6. Step 6: Final answer
    x = 169,720.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.