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Finding the Fourth Proportional to 135,157.56, 202,736.28 and 36,661.56

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Solution

The fourth proportional to 135,157.56, 202,736.28 and 36,661.56 is: 54,992.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,157.56 : 202,736.28 = 36,661.56 : x
  2. Step 2: Convert to fraction form
    135,157.56/202,736.28 = 36,661.56/x
  3. Step 3: Cross multiply
    135,157.56x = 202,736.28 × 36,661.56
  4. Step 4: Simplify right side
    135,157.56x = 7,432,628,293.40
  5. Step 5: Solve for x
    x = 7,432,628,293.40/135,157.56
  6. Step 6: Final answer
    x = 54,992.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.