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Finding the Third Proportional to 148,690 and 223,080

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Solution

The third proportional to 148,690 and 223,080 is: 334,687.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,690 : 223,080 = 223,080 : x
  2. Step 2: Convert to fraction form
    148,690/223,080 = 223,080/x
  3. Step 3: Cross multiply
    148,690x = 223,080 × 223,080
  4. Step 4: Simplify right side
    148,690x = 49,764,686,400
  5. Step 5: Solve for x
    x = 49,764,686,400/148,690
  6. Step 6: Final answer
    x = 334,687.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.