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Finding the Fourth Proportional to 121,874.77, 182,816.20 and 41,911.95

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Solution

The fourth proportional to 121,874.77, 182,816.20 and 41,911.95 is: 62,869.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,874.77 : 182,816.20 = 41,911.95 : x
  2. Step 2: Convert to fraction form
    121,874.77/182,816.20 = 41,911.95/x
  3. Step 3: Cross multiply
    121,874.77x = 182,816.20 × 41,911.95
  4. Step 4: Simplify right side
    121,874.77x = 7,662,183,143.20
  5. Step 5: Solve for x
    x = 7,662,183,143.20/121,874.77
  6. Step 6: Final answer
    x = 62,869.31

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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.