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Finding the Fourth Proportional to 245,922.78, 368,847.45 and 68,411.46

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Solution

The fourth proportional to 245,922.78, 368,847.45 and 68,411.46 is: 102,606.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,922.78 : 368,847.45 = 68,411.46 : x
  2. Step 2: Convert to fraction form
    245,922.78/368,847.45 = 68,411.46/x
  3. Step 3: Cross multiply
    245,922.78x = 368,847.45 × 68,411.46
  4. Step 4: Simplify right side
    245,922.78x = 25,233,392,571.78
  5. Step 5: Solve for x
    x = 25,233,392,571.78/245,922.78
  6. Step 6: Final answer
    x = 102,606.98

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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.