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Finding the Fourth Proportional to 67,259.72, 100,820.37 and 29,837.42

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Solution

The fourth proportional to 67,259.72, 100,820.37 and 29,837.42 is: 44,725.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,259.72 : 100,820.37 = 29,837.42 : x
  2. Step 2: Convert to fraction form
    67,259.72/100,820.37 = 29,837.42/x
  3. Step 3: Cross multiply
    67,259.72x = 100,820.37 × 29,837.42
  4. Step 4: Simplify right side
    67,259.72x = 3,008,219,220.14
  5. Step 5: Solve for x
    x = 3,008,219,220.14/67,259.72
  6. Step 6: Final answer
    x = 44,725.42

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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.