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Finding the Fourth Proportional to 267,704.18, 401,912.64 and 155,464.95

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Solution

The fourth proportional to 267,704.18, 401,912.64 and 155,464.95 is: 233,404.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,704.18 : 401,912.64 = 155,464.95 : x
  2. Step 2: Convert to fraction form
    267,704.18/401,912.64 = 155,464.95/x
  3. Step 3: Cross multiply
    267,704.18x = 401,912.64 × 155,464.95
  4. Step 4: Simplify right side
    267,704.18x = 62,483,325,969.46
  5. Step 5: Solve for x
    x = 62,483,325,969.46/267,704.18
  6. Step 6: Final answer
    x = 233,404.37

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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.