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Finding the Fourth Proportional to 73,092.78, 109,647.54 and 39,861.45

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Solution

The fourth proportional to 73,092.78, 109,647.54 and 39,861.45 is: 59,796.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,092.78 : 109,647.54 = 39,861.45 : x
  2. Step 2: Convert to fraction form
    73,092.78/109,647.54 = 39,861.45/x
  3. Step 3: Cross multiply
    73,092.78x = 109,647.54 × 39,861.45
  4. Step 4: Simplify right side
    73,092.78x = 4,370,709,933.33
  5. Step 5: Solve for x
    x = 4,370,709,933.33/73,092.78
  6. Step 6: Final answer
    x = 59,796.74

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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.