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Finding the Third Proportional to 100,681 and 141,132

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Solution

The third proportional to 100,681 and 141,132 is: 197,835.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,681 : 141,132 = 141,132 : x
  2. Step 2: Convert to fraction form
    100,681/141,132 = 141,132/x
  3. Step 3: Cross multiply
    100,681x = 141,132 × 141,132
  4. Step 4: Simplify right side
    100,681x = 19,918,241,424
  5. Step 5: Solve for x
    x = 19,918,241,424/100,681
  6. Step 6: Final answer
    x = 197,835.16

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.