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Finding the Third Proportional to 145,366 and 196,340

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Solution

The third proportional to 145,366 and 196,340 is: 265,188.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,366 : 196,340 = 196,340 : x
  2. Step 2: Convert to fraction form
    145,366/196,340 = 196,340/x
  3. Step 3: Cross multiply
    145,366x = 196,340 × 196,340
  4. Step 4: Simplify right side
    145,366x = 38,549,395,600
  5. Step 5: Solve for x
    x = 38,549,395,600/145,366
  6. Step 6: Final answer
    x = 265,188.53

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.