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Finding the Third Proportional to 185,203 and 280,386

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Solution

The third proportional to 185,203 and 280,386 is: 424,487.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,203 : 280,386 = 280,386 : x
  2. Step 2: Convert to fraction form
    185,203/280,386 = 280,386/x
  3. Step 3: Cross multiply
    185,203x = 280,386 × 280,386
  4. Step 4: Simplify right side
    185,203x = 78,616,308,996
  5. Step 5: Solve for x
    x = 78,616,308,996/185,203
  6. Step 6: Final answer
    x = 424,487.23

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.