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Finding the Fourth Proportional to 172,531.67, 258,638.10 and 92,625.87

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Solution

The fourth proportional to 172,531.67, 258,638.10 and 92,625.87 is: 138,853.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,531.67 : 258,638.10 = 92,625.87 : x
  2. Step 2: Convert to fraction form
    172,531.67/258,638.10 = 92,625.87/x
  3. Step 3: Cross multiply
    172,531.67x = 258,638.10 × 92,625.87
  4. Step 4: Simplify right side
    172,531.67x = 23,956,579,027.65
  5. Step 5: Solve for x
    x = 23,956,579,027.65/172,531.67
  6. Step 6: Final answer
    x = 138,853.23

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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.