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Finding the Fourth Proportional to 73,896.59, 110,861.28 and 21,301.97

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Solution

The fourth proportional to 73,896.59, 110,861.28 and 21,301.97 is: 31,957.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,896.59 : 110,861.28 = 21,301.97 : x
  2. Step 2: Convert to fraction form
    73,896.59/110,861.28 = 21,301.97/x
  3. Step 3: Cross multiply
    73,896.59x = 110,861.28 × 21,301.97
  4. Step 4: Simplify right side
    73,896.59x = 2,361,563,106.42
  5. Step 5: Solve for x
    x = 2,361,563,106.42/73,896.59
  6. Step 6: Final answer
    x = 31,957.68

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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.