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Finding the Fourth Proportional to 172,568.88, 258,864.48 and 54,244.80

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Solution

The fourth proportional to 172,568.88, 258,864.48 and 54,244.80 is: 81,370.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,568.88 : 258,864.48 = 54,244.80 : x
  2. Step 2: Convert to fraction form
    172,568.88/258,864.48 = 54,244.80/x
  3. Step 3: Cross multiply
    172,568.88x = 258,864.48 × 54,244.80
  4. Step 4: Simplify right side
    172,568.88x = 14,042,051,944.70
  5. Step 5: Solve for x
    x = 14,042,051,944.70/172,568.88
  6. Step 6: Final answer
    x = 81,370.71

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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.