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Finding the Fourth Proportional to 203,292.21, 304,885.17 and 61,099.47

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Solution

The fourth proportional to 203,292.21, 304,885.17 and 61,099.47 is: 91,633.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,292.21 : 304,885.17 = 61,099.47 : x
  2. Step 2: Convert to fraction form
    203,292.21/304,885.17 = 61,099.47/x
  3. Step 3: Cross multiply
    203,292.21x = 304,885.17 × 61,099.47
  4. Step 4: Simplify right side
    203,292.21x = 18,628,322,297.86
  5. Step 5: Solve for x
    x = 18,628,322,297.86/203,292.21
  6. Step 6: Final answer
    x = 91,633.23

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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.