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Finding the Third Proportional to 103,426 and 162,515

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Solution

The third proportional to 103,426 and 162,515 is: 255,362.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,426 : 162,515 = 162,515 : x
  2. Step 2: Convert to fraction form
    103,426/162,515 = 162,515/x
  3. Step 3: Cross multiply
    103,426x = 162,515 × 162,515
  4. Step 4: Simplify right side
    103,426x = 26,411,125,225
  5. Step 5: Solve for x
    x = 26,411,125,225/103,426
  6. Step 6: Final answer
    x = 255,362.53

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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.