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Finding the Third Proportional to 190,840 and 259,179.75

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Solution

The third proportional to 190,840 and 259,179.75 is: 351,991.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,840 : 259,179.75 = 259,179.75 : x
  2. Step 2: Convert to fraction form
    190,840/259,179.75 = 259,179.75/x
  3. Step 3: Cross multiply
    190,840x = 259,179.75 × 259,179.75
  4. Step 4: Simplify right side
    190,840x = 67,174,142,810.06
  5. Step 5: Solve for x
    x = 67,174,142,810.06/190,840
  6. Step 6: Final answer
    x = 351,991.95

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.