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Finding the Fourth Proportional to 275,088.44, 379,689.57 and 167,717.67

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Solution

The fourth proportional to 275,088.44, 379,689.57 and 167,717.67 is: 231,491.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,088.44 : 379,689.57 = 167,717.67 : x
  2. Step 2: Convert to fraction form
    275,088.44/379,689.57 = 167,717.67/x
  3. Step 3: Cross multiply
    275,088.44x = 379,689.57 × 167,717.67
  4. Step 4: Simplify right side
    275,088.44x = 63,680,650,003.70
  5. Step 5: Solve for x
    x = 63,680,650,003.70/275,088.44
  6. Step 6: Final answer
    x = 231,491.56

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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.