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Finding the Fourth Proportional to 74,149.29, 111,223.90 and 29,776.03

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Solution

The fourth proportional to 74,149.29, 111,223.90 and 29,776.03 is: 44,664.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,149.29 : 111,223.90 = 29,776.03 : x
  2. Step 2: Convert to fraction form
    74,149.29/111,223.90 = 29,776.03/x
  3. Step 3: Cross multiply
    74,149.29x = 111,223.90 × 29,776.03
  4. Step 4: Simplify right side
    74,149.29x = 3,311,806,183.12
  5. Step 5: Solve for x
    x = 3,311,806,183.12/74,149.29
  6. Step 6: Final answer
    x = 44,664.03

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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.