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Finding the Fourth Proportional to 266,640.70, 367,969.96 and 159,190.70

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Solution

The fourth proportional to 266,640.70, 367,969.96 and 159,190.70 is: 219,686.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,640.70 : 367,969.96 = 159,190.70 : x
  2. Step 2: Convert to fraction form
    266,640.70/367,969.96 = 159,190.70/x
  3. Step 3: Cross multiply
    266,640.70x = 367,969.96 × 159,190.70
  4. Step 4: Simplify right side
    266,640.70x = 58,577,395,511.37
  5. Step 5: Solve for x
    x = 58,577,395,511.37/266,640.70
  6. Step 6: Final answer
    x = 219,686.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.