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Finding the Fourth Proportional to 64,778.75, 97,181.19 and 27,338.87

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Solution

The fourth proportional to 64,778.75, 97,181.19 and 27,338.87 is: 41,013.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,778.75 : 97,181.19 = 27,338.87 : x
  2. Step 2: Convert to fraction form
    64,778.75/97,181.19 = 27,338.87/x
  3. Step 3: Cross multiply
    64,778.75x = 97,181.19 × 27,338.87
  4. Step 4: Simplify right side
    64,778.75x = 2,656,823,365.60
  5. Step 5: Solve for x
    x = 2,656,823,365.60/64,778.75
  6. Step 6: Final answer
    x = 41,013.81

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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.