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Finding the Fourth Proportional to 132,790.60, 199,169.48 and 53,828.96

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Solution

The fourth proportional to 132,790.60, 199,169.48 and 53,828.96 is: 80,736.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,790.60 : 199,169.48 = 53,828.96 : x
  2. Step 2: Convert to fraction form
    132,790.60/199,169.48 = 53,828.96/x
  3. Step 3: Cross multiply
    132,790.60x = 199,169.48 × 53,828.96
  4. Step 4: Simplify right side
    132,790.60x = 10,721,085,972.14
  5. Step 5: Solve for x
    x = 10,721,085,972.14/132,790.60
  6. Step 6: Final answer
    x = 80,736.78

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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.