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Finding the Third Proportional to 98,711.25 and 158,968.50

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Solution

The third proportional to 98,711.25 and 158,968.50 is: 256,009.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,711.25 : 158,968.50 = 158,968.50 : x
  2. Step 2: Convert to fraction form
    98,711.25/158,968.50 = 158,968.50/x
  3. Step 3: Cross multiply
    98,711.25x = 158,968.50 × 158,968.50
  4. Step 4: Simplify right side
    98,711.25x = 25,270,983,992.25
  5. Step 5: Solve for x
    x = 25,270,983,992.25/98,711.25
  6. Step 6: Final answer
    x = 256,009.16

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.