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Finding the Fourth Proportional to 266,960.70, 400,441.05 and 167,427.90

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Solution

The fourth proportional to 266,960.70, 400,441.05 and 167,427.90 is: 251,141.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,960.70 : 400,441.05 = 167,427.90 : x
  2. Step 2: Convert to fraction form
    266,960.70/400,441.05 = 167,427.90/x
  3. Step 3: Cross multiply
    266,960.70x = 400,441.05 × 167,427.90
  4. Step 4: Simplify right side
    266,960.70x = 67,045,004,075.30
  5. Step 5: Solve for x
    x = 67,045,004,075.30/266,960.70
  6. Step 6: Final answer
    x = 251,141.85

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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.