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Finding the Fourth Proportional to 363,940.65, 545,976.81 and 124,041.33

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Solution

The fourth proportional to 363,940.65, 545,976.81 and 124,041.33 is: 186,084.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,940.65 : 545,976.81 = 124,041.33 : x
  2. Step 2: Convert to fraction form
    363,940.65/545,976.81 = 124,041.33/x
  3. Step 3: Cross multiply
    363,940.65x = 545,976.81 × 124,041.33
  4. Step 4: Simplify right side
    363,940.65x = 67,723,689,661.56
  5. Step 5: Solve for x
    x = 67,723,689,661.56/363,940.65
  6. Step 6: Final answer
    x = 186,084.43

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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.