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Finding the Fourth Proportional to 73,181.74, 100,989.49 and 41,349.96

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Solution

The fourth proportional to 73,181.74, 100,989.49 and 41,349.96 is: 57,062.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,181.74 : 100,989.49 = 41,349.96 : x
  2. Step 2: Convert to fraction form
    73,181.74/100,989.49 = 41,349.96/x
  3. Step 3: Cross multiply
    73,181.74x = 100,989.49 × 41,349.96
  4. Step 4: Simplify right side
    73,181.74x = 4,175,911,371.92
  5. Step 5: Solve for x
    x = 4,175,911,371.92/73,181.74
  6. Step 6: Final answer
    x = 57,062.20

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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.