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Finding the Third Proportional to 124,288 and 196,896

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Solution

The third proportional to 124,288 and 196,896 is: 311,920.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,288 : 196,896 = 196,896 : x
  2. Step 2: Convert to fraction form
    124,288/196,896 = 196,896/x
  3. Step 3: Cross multiply
    124,288x = 196,896 × 196,896
  4. Step 4: Simplify right side
    124,288x = 38,768,034,816
  5. Step 5: Solve for x
    x = 38,768,034,816/124,288
  6. Step 6: Final answer
    x = 311,920.98

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.