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Finding the Fourth Proportional to 70,716.66, 106,015.41 and 30,705.54

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Solution

The fourth proportional to 70,716.66, 106,015.41 and 30,705.54 is: 46,032.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,716.66 : 106,015.41 = 30,705.54 : x
  2. Step 2: Convert to fraction form
    70,716.66/106,015.41 = 30,705.54/x
  3. Step 3: Cross multiply
    70,716.66x = 106,015.41 × 30,705.54
  4. Step 4: Simplify right side
    70,716.66x = 3,255,260,412.37
  5. Step 5: Solve for x
    x = 3,255,260,412.37/70,716.66
  6. Step 6: Final answer
    x = 46,032.44

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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.