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Finding the Fourth Proportional to 190,377.73, 262,720.56 and 105,494.73

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Solution

The fourth proportional to 190,377.73, 262,720.56 and 105,494.73 is: 145,582.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,377.73 : 262,720.56 = 105,494.73 : x
  2. Step 2: Convert to fraction form
    190,377.73/262,720.56 = 105,494.73/x
  3. Step 3: Cross multiply
    190,377.73x = 262,720.56 × 105,494.73
  4. Step 4: Simplify right side
    190,377.73x = 27,715,633,229.05
  5. Step 5: Solve for x
    x = 27,715,633,229.05/190,377.73
  6. Step 6: Final answer
    x = 145,582.33

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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.