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Finding the Fourth Proportional to 111,810.08, 167,744.28 and 41,690

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Solution

The fourth proportional to 111,810.08, 167,744.28 and 41,690 is: 62,545.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,810.08 : 167,744.28 = 41,690 : x
  2. Step 2: Convert to fraction form
    111,810.08/167,744.28 = 41,690/x
  3. Step 3: Cross multiply
    111,810.08x = 167,744.28 × 41,690
  4. Step 4: Simplify right side
    111,810.08x = 6,993,259,033.20
  5. Step 5: Solve for x
    x = 6,993,259,033.20/111,810.08
  6. Step 6: Final answer
    x = 62,545.87

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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.