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Finding the Third Proportional to 56,668.50 and 122,121

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Solution

The third proportional to 56,668.50 and 122,121 is: 263,171.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,668.50 : 122,121 = 122,121 : x
  2. Step 2: Convert to fraction form
    56,668.50/122,121 = 122,121/x
  3. Step 3: Cross multiply
    56,668.50x = 122,121 × 122,121
  4. Step 4: Simplify right side
    56,668.50x = 14,913,538,641
  5. Step 5: Solve for x
    x = 14,913,538,641/56,668.50
  6. Step 6: Final answer
    x = 263,171.58

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.