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Finding the Fourth Proportional to 201,250.73, 301,930.55 and 68,131.01

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Solution

The fourth proportional to 201,250.73, 301,930.55 and 68,131.01 is: 102,214.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,250.73 : 301,930.55 = 68,131.01 : x
  2. Step 2: Convert to fraction form
    201,250.73/301,930.55 = 68,131.01/x
  3. Step 3: Cross multiply
    201,250.73x = 301,930.55 × 68,131.01
  4. Step 4: Simplify right side
    201,250.73x = 20,570,831,471.05
  5. Step 5: Solve for x
    x = 20,570,831,471.05/201,250.73
  6. Step 6: Final answer
    x = 102,214.94

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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.