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Finding the Fourth Proportional to 172,998.67, 238,647.51 and 150,286.67

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Solution

The fourth proportional to 172,998.67, 238,647.51 and 150,286.67 is: 207,316.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,998.67 : 238,647.51 = 150,286.67 : x
  2. Step 2: Convert to fraction form
    172,998.67/238,647.51 = 150,286.67/x
  3. Step 3: Cross multiply
    172,998.67x = 238,647.51 × 150,286.67
  4. Step 4: Simplify right side
    172,998.67x = 35,865,539,581.69
  5. Step 5: Solve for x
    x = 35,865,539,581.69/172,998.67
  6. Step 6: Final answer
    x = 207,316.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.