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Finding the Third Proportional to 158,392 and 336,220

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Solution

The third proportional to 158,392 and 336,220 is: 713,696.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,392 : 336,220 = 336,220 : x
  2. Step 2: Convert to fraction form
    158,392/336,220 = 336,220/x
  3. Step 3: Cross multiply
    158,392x = 336,220 × 336,220
  4. Step 4: Simplify right side
    158,392x = 113,043,888,400
  5. Step 5: Solve for x
    x = 113,043,888,400/158,392
  6. Step 6: Final answer
    x = 713,696.96

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.