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Finding the Third Proportional to 103,661.50 and 158,768.63

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Solution

The third proportional to 103,661.50 and 158,768.63 is: 243,171.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,661.50 : 158,768.63 = 158,768.63 : x
  2. Step 2: Convert to fraction form
    103,661.50/158,768.63 = 158,768.63/x
  3. Step 3: Cross multiply
    103,661.50x = 158,768.63 × 158,768.63
  4. Step 4: Simplify right side
    103,661.50x = 25,207,476,284.39
  5. Step 5: Solve for x
    x = 25,207,476,284.39/103,661.50
  6. Step 6: Final answer
    x = 243,171.05

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.