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Finding the Third Proportional to 71,412 and 104,908

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Solution

The third proportional to 71,412 and 104,908 is: 154,115.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,412 : 104,908 = 104,908 : x
  2. Step 2: Convert to fraction form
    71,412/104,908 = 104,908/x
  3. Step 3: Cross multiply
    71,412x = 104,908 × 104,908
  4. Step 4: Simplify right side
    71,412x = 11,005,688,464
  5. Step 5: Solve for x
    x = 11,005,688,464/71,412
  6. Step 6: Final answer
    x = 154,115.39

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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.