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Finding the Fourth Proportional to 354,571.16, 531,955.18 and 196,910.34

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Solution

The fourth proportional to 354,571.16, 531,955.18 and 196,910.34 is: 295,420.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,571.16 : 531,955.18 = 196,910.34 : x
  2. Step 2: Convert to fraction form
    354,571.16/531,955.18 = 196,910.34/x
  3. Step 3: Cross multiply
    354,571.16x = 531,955.18 × 196,910.34
  4. Step 4: Simplify right side
    354,571.16x = 104,747,475,358.56
  5. Step 5: Solve for x
    x = 104,747,475,358.56/354,571.16
  6. Step 6: Final answer
    x = 295,420.18

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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.