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Finding the Third Proportional to 192,619.50 and 299,421

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Solution

The third proportional to 192,619.50 and 299,421 is: 465,440.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,619.50 : 299,421 = 299,421 : x
  2. Step 2: Convert to fraction form
    192,619.50/299,421 = 299,421/x
  3. Step 3: Cross multiply
    192,619.50x = 299,421 × 299,421
  4. Step 4: Simplify right side
    192,619.50x = 89,652,935,241
  5. Step 5: Solve for x
    x = 89,652,935,241/192,619.50
  6. Step 6: Final answer
    x = 465,440.60

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.