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Finding the Fourth Proportional to 192,912.81, 266,212.21 and 108,025.53

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Solution

The fourth proportional to 192,912.81, 266,212.21 and 108,025.53 is: 149,071.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,912.81 : 266,212.21 = 108,025.53 : x
  2. Step 2: Convert to fraction form
    192,912.81/266,212.21 = 108,025.53/x
  3. Step 3: Cross multiply
    192,912.81x = 266,212.21 × 108,025.53
  4. Step 4: Simplify right side
    192,912.81x = 28,757,715,077.72
  5. Step 5: Solve for x
    x = 28,757,715,077.72/192,912.81
  6. Step 6: Final answer
    x = 149,071.05

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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.