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Finding the Fourth Proportional to 67,239.54, 100,812.54 and 29,779.26

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Solution

The fourth proportional to 67,239.54, 100,812.54 and 29,779.26 is: 44,648.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,239.54 : 100,812.54 = 29,779.26 : x
  2. Step 2: Convert to fraction form
    67,239.54/100,812.54 = 29,779.26/x
  3. Step 3: Cross multiply
    67,239.54x = 100,812.54 × 29,779.26
  4. Step 4: Simplify right side
    67,239.54x = 3,002,122,839.92
  5. Step 5: Solve for x
    x = 3,002,122,839.92/67,239.54
  6. Step 6: Final answer
    x = 44,648.18

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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.