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Finding the Fourth Proportional to 354,350.50, 531,527.67 and 91,694.50

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Solution

The fourth proportional to 354,350.50, 531,527.67 and 91,694.50 is: 137,542.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,350.50 : 531,527.67 = 91,694.50 : x
  2. Step 2: Convert to fraction form
    354,350.50/531,527.67 = 91,694.50/x
  3. Step 3: Cross multiply
    354,350.50x = 531,527.67 × 91,694.50
  4. Step 4: Simplify right side
    354,350.50x = 48,738,163,936.82
  5. Step 5: Solve for x
    x = 48,738,163,936.82/354,350.50
  6. Step 6: Final answer
    x = 137,542.25

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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.