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Finding the Third Proportional to 202,172 and 317,134

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Solution

The third proportional to 202,172 and 317,134 is: 497,467.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,172 : 317,134 = 317,134 : x
  2. Step 2: Convert to fraction form
    202,172/317,134 = 317,134/x
  3. Step 3: Cross multiply
    202,172x = 317,134 × 317,134
  4. Step 4: Simplify right side
    202,172x = 100,573,973,956
  5. Step 5: Solve for x
    x = 100,573,973,956/202,172
  6. Step 6: Final answer
    x = 497,467.37

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.