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Finding the Third Proportional to 212,224 and 331,248

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Solution

The third proportional to 212,224 and 331,248 is: 517,025.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,224 : 331,248 = 331,248 : x
  2. Step 2: Convert to fraction form
    212,224/331,248 = 331,248/x
  3. Step 3: Cross multiply
    212,224x = 331,248 × 331,248
  4. Step 4: Simplify right side
    212,224x = 109,725,237,504
  5. Step 5: Solve for x
    x = 109,725,237,504/212,224
  6. Step 6: Final answer
    x = 517,025.58

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.