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Finding the Third Proportional to 53,651.25 and 81,169.50

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Solution

The third proportional to 53,651.25 and 81,169.50 is: 122,802.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,651.25 : 81,169.50 = 81,169.50 : x
  2. Step 2: Convert to fraction form
    53,651.25/81,169.50 = 81,169.50/x
  3. Step 3: Cross multiply
    53,651.25x = 81,169.50 × 81,169.50
  4. Step 4: Simplify right side
    53,651.25x = 6,588,487,730.25
  5. Step 5: Solve for x
    x = 6,588,487,730.25/53,651.25
  6. Step 6: Final answer
    x = 122,802.13

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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.