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Finding the Fourth Proportional to 195,268.50, 269,470.56 and 105,844.50

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Solution

The fourth proportional to 195,268.50, 269,470.56 and 105,844.50 is: 146,065.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,268.50 : 269,470.56 = 105,844.50 : x
  2. Step 2: Convert to fraction form
    195,268.50/269,470.56 = 105,844.50/x
  3. Step 3: Cross multiply
    195,268.50x = 269,470.56 × 105,844.50
  4. Step 4: Simplify right side
    195,268.50x = 28,521,976,687.92
  5. Step 5: Solve for x
    x = 28,521,976,687.92/195,268.50
  6. Step 6: Final answer
    x = 146,065.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.