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Finding the Fourth Proportional to 169,491.78, 254,202.84 and 161,061.30

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Solution

The fourth proportional to 169,491.78, 254,202.84 and 161,061.30 is: 241,558.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,491.78 : 254,202.84 = 161,061.30 : x
  2. Step 2: Convert to fraction form
    169,491.78/254,202.84 = 161,061.30/x
  3. Step 3: Cross multiply
    169,491.78x = 254,202.84 × 161,061.30
  4. Step 4: Simplify right side
    169,491.78x = 40,942,239,874.09
  5. Step 5: Solve for x
    x = 40,942,239,874.09/169,491.78
  6. Step 6: Final answer
    x = 241,558.85

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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.