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Finding the Fourth Proportional to 360,568.15, 540,940.79 and 123,914.23

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Solution

The fourth proportional to 360,568.15, 540,940.79 and 123,914.23 is: 185,901.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,568.15 : 540,940.79 = 123,914.23 : x
  2. Step 2: Convert to fraction form
    360,568.15/540,940.79 = 123,914.23/x
  3. Step 3: Cross multiply
    360,568.15x = 540,940.79 × 123,914.23
  4. Step 4: Simplify right side
    360,568.15x = 67,030,261,468.44
  5. Step 5: Solve for x
    x = 67,030,261,468.44/360,568.15
  6. Step 6: Final answer
    x = 185,901.78

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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.