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Finding the Third Proportional to 105,912 and 155,625

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Solution

The third proportional to 105,912 and 155,625 is: 228,672.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,912 : 155,625 = 155,625 : x
  2. Step 2: Convert to fraction form
    105,912/155,625 = 155,625/x
  3. Step 3: Cross multiply
    105,912x = 155,625 × 155,625
  4. Step 4: Simplify right side
    105,912x = 24,219,140,625
  5. Step 5: Solve for x
    x = 24,219,140,625/105,912
  6. Step 6: Final answer
    x = 228,672.30

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.