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Finding the Fourth Proportional to 359,172.75, 538,761.83 and 159,439.44

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Solution

The fourth proportional to 359,172.75, 538,761.83 and 159,439.44 is: 239,160.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,172.75 : 538,761.83 = 159,439.44 : x
  2. Step 2: Convert to fraction form
    359,172.75/538,761.83 = 159,439.44/x
  3. Step 3: Cross multiply
    359,172.75x = 538,761.83 × 159,439.44
  4. Step 4: Simplify right side
    359,172.75x = 85,899,883,671.38
  5. Step 5: Solve for x
    x = 85,899,883,671.38/359,172.75
  6. Step 6: Final answer
    x = 239,160.36

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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.