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Finding the Third Proportional to 190,815.75 and 411,672.38

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Solution

The third proportional to 190,815.75 and 411,672.38 is: 888,155.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,815.75 : 411,672.38 = 411,672.38 : x
  2. Step 2: Convert to fraction form
    190,815.75/411,672.38 = 411,672.38/x
  3. Step 3: Cross multiply
    190,815.75x = 411,672.38 × 411,672.38
  4. Step 4: Simplify right side
    190,815.75x = 169,474,144,338.14
  5. Step 5: Solve for x
    x = 169,474,144,338.14/190,815.75
  6. Step 6: Final answer
    x = 888,155.95

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.