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Finding the Fourth Proportional to 273,141.80, 409,712.70 and 167,618.60

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Solution

The fourth proportional to 273,141.80, 409,712.70 and 167,618.60 is: 251,427.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,141.80 : 409,712.70 = 167,618.60 : x
  2. Step 2: Convert to fraction form
    273,141.80/409,712.70 = 167,618.60/x
  3. Step 3: Cross multiply
    273,141.80x = 409,712.70 × 167,618.60
  4. Step 4: Simplify right side
    273,141.80x = 68,675,469,176.22
  5. Step 5: Solve for x
    x = 68,675,469,176.22/273,141.80
  6. Step 6: Final answer
    x = 251,427.90

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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.