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Finding the Third Proportional to 74,456 and 103,476

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Solution

The third proportional to 74,456 and 103,476 is: 143,806.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,456 : 103,476 = 103,476 : x
  2. Step 2: Convert to fraction form
    74,456/103,476 = 103,476/x
  3. Step 3: Cross multiply
    74,456x = 103,476 × 103,476
  4. Step 4: Simplify right side
    74,456x = 10,707,282,576
  5. Step 5: Solve for x
    x = 10,707,282,576/74,456
  6. Step 6: Final answer
    x = 143,806.85

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.