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Finding the Third Proportional to 183,172 and 378,104

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Solution

The third proportional to 183,172 and 378,104 is: 780,483.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,172 : 378,104 = 378,104 : x
  2. Step 2: Convert to fraction form
    183,172/378,104 = 378,104/x
  3. Step 3: Cross multiply
    183,172x = 378,104 × 378,104
  4. Step 4: Simplify right side
    183,172x = 142,962,634,816
  5. Step 5: Solve for x
    x = 142,962,634,816/183,172
  6. Step 6: Final answer
    x = 780,483.01

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.