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Finding the Fourth Proportional to 172,889.43, 259,361.82 and 73,050.59

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Solution

The fourth proportional to 172,889.43, 259,361.82 and 73,050.59 is: 109,587.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,889.43 : 259,361.82 = 73,050.59 : x
  2. Step 2: Convert to fraction form
    172,889.43/259,361.82 = 73,050.59/x
  3. Step 3: Cross multiply
    172,889.43x = 259,361.82 × 73,050.59
  4. Step 4: Simplify right side
    172,889.43x = 18,946,533,974.47
  5. Step 5: Solve for x
    x = 18,946,533,974.47/172,889.43
  6. Step 6: Final answer
    x = 109,587.58

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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.