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Finding the Third Proportional to 98,280 and 155,856

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Solution

The third proportional to 98,280 and 155,856 is: 247,162.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,280 : 155,856 = 155,856 : x
  2. Step 2: Convert to fraction form
    98,280/155,856 = 155,856/x
  3. Step 3: Cross multiply
    98,280x = 155,856 × 155,856
  4. Step 4: Simplify right side
    98,280x = 24,291,092,736
  5. Step 5: Solve for x
    x = 24,291,092,736/98,280
  6. Step 6: Final answer
    x = 247,162.12

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.