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Finding the Third Proportional to 197,268.75 and 288,522

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Solution

The third proportional to 197,268.75 and 288,522 is: 421,987.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,268.75 : 288,522 = 288,522 : x
  2. Step 2: Convert to fraction form
    197,268.75/288,522 = 288,522/x
  3. Step 3: Cross multiply
    197,268.75x = 288,522 × 288,522
  4. Step 4: Simplify right side
    197,268.75x = 83,244,944,484
  5. Step 5: Solve for x
    x = 83,244,944,484/197,268.75
  6. Step 6: Final answer
    x = 421,987.49

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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.