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Finding the Fourth Proportional to 132,920.60, 199,208.67 and 53,991.77

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Solution

The fourth proportional to 132,920.60, 199,208.67 and 53,991.77 is: 80,917.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,920.60 : 199,208.67 = 53,991.77 : x
  2. Step 2: Convert to fraction form
    132,920.60/199,208.67 = 53,991.77/x
  3. Step 3: Cross multiply
    132,920.60x = 199,208.67 × 53,991.77
  4. Step 4: Simplify right side
    132,920.60x = 10,755,627,494.13
  5. Step 5: Solve for x
    x = 10,755,627,494.13/132,920.60
  6. Step 6: Final answer
    x = 80,917.69

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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.