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Finding the Third Proportional to 190,172.81 and 271,929.38

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Solution

The third proportional to 190,172.81 and 271,929.38 is: 388,833.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,172.81 : 271,929.38 = 271,929.38 : x
  2. Step 2: Convert to fraction form
    190,172.81/271,929.38 = 271,929.38/x
  3. Step 3: Cross multiply
    190,172.81x = 271,929.38 × 271,929.38
  4. Step 4: Simplify right side
    190,172.81x = 73,945,584,987.89
  5. Step 5: Solve for x
    x = 73,945,584,987.89/190,172.81
  6. Step 6: Final answer
    x = 388,833.63

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.