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Finding the Fourth Proportional to 121,873.21, 182,813.86 and 41,910.39

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Solution

The fourth proportional to 121,873.21, 182,813.86 and 41,910.39 is: 62,866.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,873.21 : 182,813.86 = 41,910.39 : x
  2. Step 2: Convert to fraction form
    121,873.21/182,813.86 = 41,910.39/x
  3. Step 3: Cross multiply
    121,873.21x = 182,813.86 × 41,910.39
  4. Step 4: Simplify right side
    121,873.21x = 7,661,799,274.90
  5. Step 5: Solve for x
    x = 7,661,799,274.90/121,873.21
  6. Step 6: Final answer
    x = 62,866.97

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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.