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Finding the Third Proportional to 90,224 and 128,232

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Solution

The third proportional to 90,224 and 128,232 is: 182,251.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,224 : 128,232 = 128,232 : x
  2. Step 2: Convert to fraction form
    90,224/128,232 = 128,232/x
  3. Step 3: Cross multiply
    90,224x = 128,232 × 128,232
  4. Step 4: Simplify right side
    90,224x = 16,443,445,824
  5. Step 5: Solve for x
    x = 16,443,445,824/90,224
  6. Step 6: Final answer
    x = 182,251.35

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.