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Finding the Fourth Proportional to 70,682.01, 106,022.94 and 18,091.41

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Solution

The fourth proportional to 70,682.01, 106,022.94 and 18,091.41 is: 27,137.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,682.01 : 106,022.94 = 18,091.41 : x
  2. Step 2: Convert to fraction form
    70,682.01/106,022.94 = 18,091.41/x
  3. Step 3: Cross multiply
    70,682.01x = 106,022.94 × 18,091.41
  4. Step 4: Simplify right side
    70,682.01x = 1,918,103,946.83
  5. Step 5: Solve for x
    x = 1,918,103,946.83/70,682.01
  6. Step 6: Final answer
    x = 27,137.09

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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.