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Finding the Third Proportional to 56,878.50 and 122,343

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Solution

The third proportional to 56,878.50 and 122,343 is: 263,154.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,878.50 : 122,343 = 122,343 : x
  2. Step 2: Convert to fraction form
    56,878.50/122,343 = 122,343/x
  3. Step 3: Cross multiply
    56,878.50x = 122,343 × 122,343
  4. Step 4: Simplify right side
    56,878.50x = 14,967,809,649
  5. Step 5: Solve for x
    x = 14,967,809,649/56,878.50
  6. Step 6: Final answer
    x = 263,154.09

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.