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Finding the Fourth Proportional to 245,786.32, 368,679.30 and 68,293.24

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Solution

The fourth proportional to 245,786.32, 368,679.30 and 68,293.24 is: 102,439.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,786.32 : 368,679.30 = 68,293.24 : x
  2. Step 2: Convert to fraction form
    245,786.32/368,679.30 = 68,293.24/x
  3. Step 3: Cross multiply
    245,786.32x = 368,679.30 × 68,293.24
  4. Step 4: Simplify right side
    245,786.32x = 25,178,303,917.93
  5. Step 5: Solve for x
    x = 25,178,303,917.93/245,786.32
  6. Step 6: Final answer
    x = 102,439.81

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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.