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Finding the Fourth Proportional to 73,180.68, 100,991.32 and 41,348.90

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Solution

The fourth proportional to 73,180.68, 100,991.32 and 41,348.90 is: 57,062.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,180.68 : 100,991.32 = 41,348.90 : x
  2. Step 2: Convert to fraction form
    73,180.68/100,991.32 = 41,348.90/x
  3. Step 3: Cross multiply
    73,180.68x = 100,991.32 × 41,348.90
  4. Step 4: Simplify right side
    73,180.68x = 4,175,879,991.55
  5. Step 5: Solve for x
    x = 4,175,879,991.55/73,180.68
  6. Step 6: Final answer
    x = 57,062.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.