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Finding the Fourth Proportional to 172,343.58, 258,251.31 and 115,975.14

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Solution

The fourth proportional to 172,343.58, 258,251.31 and 115,975.14 is: 173,785.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,343.58 : 258,251.31 = 115,975.14 : x
  2. Step 2: Convert to fraction form
    172,343.58/258,251.31 = 115,975.14/x
  3. Step 3: Cross multiply
    172,343.58x = 258,251.31 × 115,975.14
  4. Step 4: Simplify right side
    172,343.58x = 29,950,731,832.43
  5. Step 5: Solve for x
    x = 29,950,731,832.43/172,343.58
  6. Step 6: Final answer
    x = 173,785.02

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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.