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Finding the Third Proportional to 100,556 and 147,756

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Solution

The third proportional to 100,556 and 147,756 is: 217,111.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,556 : 147,756 = 147,756 : x
  2. Step 2: Convert to fraction form
    100,556/147,756 = 147,756/x
  3. Step 3: Cross multiply
    100,556x = 147,756 × 147,756
  4. Step 4: Simplify right side
    100,556x = 21,831,835,536
  5. Step 5: Solve for x
    x = 21,831,835,536/100,556
  6. Step 6: Final answer
    x = 217,111.22

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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.