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Finding the Fourth Proportional to 203,425.27, 305,096.15 and 77,022.01

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Solution

The fourth proportional to 203,425.27, 305,096.15 and 77,022.01 is: 115,517.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,425.27 : 305,096.15 = 77,022.01 : x
  2. Step 2: Convert to fraction form
    203,425.27/305,096.15 = 77,022.01/x
  3. Step 3: Cross multiply
    203,425.27x = 305,096.15 × 77,022.01
  4. Step 4: Simplify right side
    203,425.27x = 23,499,118,716.26
  5. Step 5: Solve for x
    x = 23,499,118,716.26/203,425.27
  6. Step 6: Final answer
    x = 115,517.21

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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.