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Finding the Fourth Proportional to 172,956.96, 259,435.44 and 133,571.52

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Solution

The fourth proportional to 172,956.96, 259,435.44 and 133,571.52 is: 200,357.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,956.96 : 259,435.44 = 133,571.52 : x
  2. Step 2: Convert to fraction form
    172,956.96/259,435.44 = 133,571.52/x
  3. Step 3: Cross multiply
    172,956.96x = 259,435.44 × 133,571.52
  4. Step 4: Simplify right side
    172,956.96x = 34,653,186,062.67
  5. Step 5: Solve for x
    x = 34,653,186,062.67/172,956.96
  6. Step 6: Final answer
    x = 200,357.28

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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.