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Finding the Fourth Proportional to 225,768.19, 338,647.42 and 67,993.15

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Solution

The fourth proportional to 225,768.19, 338,647.42 and 67,993.15 is: 101,988.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,768.19 : 338,647.42 = 67,993.15 : x
  2. Step 2: Convert to fraction form
    225,768.19/338,647.42 = 67,993.15/x
  3. Step 3: Cross multiply
    225,768.19x = 338,647.42 × 67,993.15
  4. Step 4: Simplify right side
    225,768.19x = 23,025,704,825.17
  5. Step 5: Solve for x
    x = 23,025,704,825.17/225,768.19
  6. Step 6: Final answer
    x = 101,988.26

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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.