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Finding the Fourth Proportional to 268,322.45, 402,497.46 and 68,644.56

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Solution

The fourth proportional to 268,322.45, 402,497.46 and 68,644.56 is: 102,970.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,322.45 : 402,497.46 = 68,644.56 : x
  2. Step 2: Convert to fraction form
    268,322.45/402,497.46 = 68,644.56/x
  3. Step 3: Cross multiply
    268,322.45x = 402,497.46 × 68,644.56
  4. Step 4: Simplify right side
    268,322.45x = 27,629,260,699.59
  5. Step 5: Solve for x
    x = 27,629,260,699.59/268,322.45
  6. Step 6: Final answer
    x = 102,970.37

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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.