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Finding the Third Proportional to 176,392 and 257,190

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Solution

The third proportional to 176,392 and 257,190 is: 374,998.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,392 : 257,190 = 257,190 : x
  2. Step 2: Convert to fraction form
    176,392/257,190 = 257,190/x
  3. Step 3: Cross multiply
    176,392x = 257,190 × 257,190
  4. Step 4: Simplify right side
    176,392x = 66,146,696,100
  5. Step 5: Solve for x
    x = 66,146,696,100/176,392
  6. Step 6: Final answer
    x = 374,998.28

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.