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Finding the Fourth Proportional to 201,076.64, 301,629.60 and 67,912.64

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Solution

The fourth proportional to 201,076.64, 301,629.60 and 67,912.64 is: 101,873.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,076.64 : 301,629.60 = 67,912.64 : x
  2. Step 2: Convert to fraction form
    201,076.64/301,629.60 = 67,912.64/x
  3. Step 3: Cross multiply
    201,076.64x = 301,629.60 × 67,912.64
  4. Step 4: Simplify right side
    201,076.64x = 20,484,462,438.14
  5. Step 5: Solve for x
    x = 20,484,462,438.14/201,076.64
  6. Step 6: Final answer
    x = 101,873.90

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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.