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Finding the Third Proportional to 189,356 and 411,112

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Solution

The third proportional to 189,356 and 411,112 is: 892,567.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,356 : 411,112 = 411,112 : x
  2. Step 2: Convert to fraction form
    189,356/411,112 = 411,112/x
  3. Step 3: Cross multiply
    189,356x = 411,112 × 411,112
  4. Step 4: Simplify right side
    189,356x = 169,013,076,544
  5. Step 5: Solve for x
    x = 169,013,076,544/189,356
  6. Step 6: Final answer
    x = 892,567.84

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.