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Finding the Third Proportional to 111,121.88 and 158,790.38

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Solution

The third proportional to 111,121.88 and 158,790.38 is: 226,907.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,121.88 : 158,790.38 = 158,790.38 : x
  2. Step 2: Convert to fraction form
    111,121.88/158,790.38 = 158,790.38/x
  3. Step 3: Cross multiply
    111,121.88x = 158,790.38 × 158,790.38
  4. Step 4: Simplify right side
    111,121.88x = 25,214,383,192.64
  5. Step 5: Solve for x
    x = 25,214,383,192.64/111,121.88
  6. Step 6: Final answer
    x = 226,907.47

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.