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Finding the Fourth Proportional to 72,674.22, 109,027.05 and 22,069.09

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Solution

The fourth proportional to 72,674.22, 109,027.05 and 22,069.09 is: 33,108.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,674.22 : 109,027.05 = 22,069.09 : x
  2. Step 2: Convert to fraction form
    72,674.22/109,027.05 = 22,069.09/x
  3. Step 3: Cross multiply
    72,674.22x = 109,027.05 × 22,069.09
  4. Step 4: Simplify right side
    72,674.22x = 2,406,127,997.93
  5. Step 5: Solve for x
    x = 2,406,127,997.93/72,674.22
  6. Step 6: Final answer
    x = 33,108.41

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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.