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Finding the Fourth Proportional to 267,647.67, 401,344.38 and 155,362.33

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Solution

The fourth proportional to 267,647.67, 401,344.38 and 155,362.33 is: 232,969.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,647.67 : 401,344.38 = 155,362.33 : x
  2. Step 2: Convert to fraction form
    267,647.67/401,344.38 = 155,362.33/x
  3. Step 3: Cross multiply
    267,647.67x = 401,344.38 × 155,362.33
  4. Step 4: Simplify right side
    267,647.67x = 62,353,797,005.84
  5. Step 5: Solve for x
    x = 62,353,797,005.84/267,647.67
  6. Step 6: Final answer
    x = 232,969.70

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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.