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Finding the Third Proportional to 100,359.84 and 146,772

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Solution

The third proportional to 100,359.84 and 146,772 is: 214,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,359.84 : 146,772 = 146,772 : x
  2. Step 2: Convert to fraction form
    100,359.84/146,772 = 146,772/x
  3. Step 3: Cross multiply
    100,359.84x = 146,772 × 146,772
  4. Step 4: Simplify right side
    100,359.84x = 21,542,019,984
  5. Step 5: Solve for x
    x = 21,542,019,984/100,359.84
  6. Step 6: Final answer
    x = 214,647.80

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.