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Finding the Third Proportional to 202,130 and 313,852

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Solution

The third proportional to 202,130 and 313,852 is: 487,325.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,130 : 313,852 = 313,852 : x
  2. Step 2: Convert to fraction form
    202,130/313,852 = 313,852/x
  3. Step 3: Cross multiply
    202,130x = 313,852 × 313,852
  4. Step 4: Simplify right side
    202,130x = 98,503,077,904
  5. Step 5: Solve for x
    x = 98,503,077,904/202,130
  6. Step 6: Final answer
    x = 487,325.37

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.