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Finding the Third Proportional to 103,475 and 221,707

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Solution

The third proportional to 103,475 and 221,707 is: 475,032.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,475 : 221,707 = 221,707 : x
  2. Step 2: Convert to fraction form
    103,475/221,707 = 221,707/x
  3. Step 3: Cross multiply
    103,475x = 221,707 × 221,707
  4. Step 4: Simplify right side
    103,475x = 49,153,993,849
  5. Step 5: Solve for x
    x = 49,153,993,849/103,475
  6. Step 6: Final answer
    x = 475,032.56

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.