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Finding the Fourth Proportional to 135,164.42, 186,522.23 and 73,912.09

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Solution

The fourth proportional to 135,164.42, 186,522.23 and 73,912.09 is: 101,996.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,164.42 : 186,522.23 = 73,912.09 : x
  2. Step 2: Convert to fraction form
    135,164.42/186,522.23 = 73,912.09/x
  3. Step 3: Cross multiply
    135,164.42x = 186,522.23 × 73,912.09
  4. Step 4: Simplify right side
    135,164.42x = 13,786,247,991.52
  5. Step 5: Solve for x
    x = 13,786,247,991.52/135,164.42
  6. Step 6: Final answer
    x = 101,996.13

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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.