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Finding the Fourth Proportional to 313,628.54, 470,471.97 and 88,994.48

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Solution

The fourth proportional to 313,628.54, 470,471.97 and 88,994.48 is: 133,499.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,628.54 : 470,471.97 = 88,994.48 : x
  2. Step 2: Convert to fraction form
    313,628.54/470,471.97 = 88,994.48/x
  3. Step 3: Cross multiply
    313,628.54x = 470,471.97 × 88,994.48
  4. Step 4: Simplify right side
    313,628.54x = 41,869,405,972.37
  5. Step 5: Solve for x
    x = 41,869,405,972.37/313,628.54
  6. Step 6: Final answer
    x = 133,499.99

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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.