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Finding the Fourth Proportional to 172,850.70, 259,276.06 and 54,531.27

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Solution

The fourth proportional to 172,850.70, 259,276.06 and 54,531.27 is: 81,796.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,850.70 : 259,276.06 = 54,531.27 : x
  2. Step 2: Convert to fraction form
    172,850.70/259,276.06 = 54,531.27/x
  3. Step 3: Cross multiply
    172,850.70x = 259,276.06 × 54,531.27
  4. Step 4: Simplify right side
    172,850.70x = 14,138,652,696.07
  5. Step 5: Solve for x
    x = 14,138,652,696.07/172,850.70
  6. Step 6: Final answer
    x = 81,796.91

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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.