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Finding the Fourth Proportional to 172,998.38, 259,541.21 and 48,339.38

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Solution

The fourth proportional to 172,998.38, 259,541.21 and 48,339.38 is: 72,521.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,998.38 : 259,541.21 = 48,339.38 : x
  2. Step 2: Convert to fraction form
    172,998.38/259,541.21 = 48,339.38/x
  3. Step 3: Cross multiply
    172,998.38x = 259,541.21 × 48,339.38
  4. Step 4: Simplify right side
    172,998.38x = 12,546,061,945.55
  5. Step 5: Solve for x
    x = 12,546,061,945.55/172,998.38
  6. Step 6: Final answer
    x = 72,521.27

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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.