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Finding the Third Proportional to 98,712 and 140,684

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Solution

The third proportional to 98,712 and 140,684 is: 200,502.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,712 : 140,684 = 140,684 : x
  2. Step 2: Convert to fraction form
    98,712/140,684 = 140,684/x
  3. Step 3: Cross multiply
    98,712x = 140,684 × 140,684
  4. Step 4: Simplify right side
    98,712x = 19,791,987,856
  5. Step 5: Solve for x
    x = 19,791,987,856/98,712
  6. Step 6: Final answer
    x = 200,502.35

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.