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Finding the Fourth Proportional to 190,615.68, 263,049.84 and 105,733.44

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Solution

The fourth proportional to 190,615.68, 263,049.84 and 105,733.44 is: 145,912.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,615.68 : 263,049.84 = 105,733.44 : x
  2. Step 2: Convert to fraction form
    190,615.68/263,049.84 = 105,733.44/x
  3. Step 3: Cross multiply
    190,615.68x = 263,049.84 × 105,733.44
  4. Step 4: Simplify right side
    190,615.68x = 27,813,164,474.65
  5. Step 5: Solve for x
    x = 27,813,164,474.65/190,615.68
  6. Step 6: Final answer
    x = 145,912.26

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1.5x scale

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.