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Finding the Fourth Proportional to 172,364.35, 258,546.52 and 54,045.22

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Solution

The fourth proportional to 172,364.35, 258,546.52 and 54,045.22 is: 81,067.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,364.35 : 258,546.52 = 54,045.22 : x
  2. Step 2: Convert to fraction form
    172,364.35/258,546.52 = 54,045.22/x
  3. Step 3: Cross multiply
    172,364.35x = 258,546.52 × 54,045.22
  4. Step 4: Simplify right side
    172,364.35x = 13,973,202,772.16
  5. Step 5: Solve for x
    x = 13,973,202,772.16/172,364.35
  6. Step 6: Final answer
    x = 81,067.83

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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.