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Finding the Fourth Proportional to 67,078.01, 100,637.13 and 27,076.41

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Solution

The fourth proportional to 67,078.01, 100,637.13 and 27,076.41 is: 40,622.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,078.01 : 100,637.13 = 27,076.41 : x
  2. Step 2: Convert to fraction form
    67,078.01/100,637.13 = 27,076.41/x
  3. Step 3: Cross multiply
    67,078.01x = 100,637.13 × 27,076.41
  4. Step 4: Simplify right side
    67,078.01x = 2,724,892,193.10
  5. Step 5: Solve for x
    x = 2,724,892,193.10/67,078.01
  6. Step 6: Final answer
    x = 40,622.74

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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.