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Finding the Fourth Proportional to 67,161.86, 100,721.04 and 22,173.11

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Solution

The fourth proportional to 67,161.86, 100,721.04 and 22,173.11 is: 33,252.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,161.86 : 100,721.04 = 22,173.11 : x
  2. Step 2: Convert to fraction form
    67,161.86/100,721.04 = 22,173.11/x
  3. Step 3: Cross multiply
    67,161.86x = 100,721.04 × 22,173.11
  4. Step 4: Simplify right side
    67,161.86x = 2,233,298,195.63
  5. Step 5: Solve for x
    x = 2,233,298,195.63/67,161.86
  6. Step 6: Final answer
    x = 33,252.48

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1.5x scale

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.