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Finding the Fourth Proportional to 266,491.71, 367,640.43 and 158,999.24

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Solution

The fourth proportional to 266,491.71, 367,640.43 and 158,999.24 is: 219,348.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,491.71 : 367,640.43 = 158,999.24 : x
  2. Step 2: Convert to fraction form
    266,491.71/367,640.43 = 158,999.24/x
  3. Step 3: Cross multiply
    266,491.71x = 367,640.43 × 158,999.24
  4. Step 4: Simplify right side
    266,491.71x = 58,454,548,963.27
  5. Step 5: Solve for x
    x = 58,454,548,963.27/266,491.71
  6. Step 6: Final answer
    x = 219,348.47

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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.