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Finding the Third Proportional to 66,624 and 145,596

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Solution

The third proportional to 66,624 and 145,596 is: 318,176.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,624 : 145,596 = 145,596 : x
  2. Step 2: Convert to fraction form
    66,624/145,596 = 145,596/x
  3. Step 3: Cross multiply
    66,624x = 145,596 × 145,596
  4. Step 4: Simplify right side
    66,624x = 21,198,195,216
  5. Step 5: Solve for x
    x = 21,198,195,216/66,624
  6. Step 6: Final answer
    x = 318,176.56

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.