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Finding the Fourth Proportional to 274,221.80, 411,138.30 and 124,533.80

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Solution

The fourth proportional to 274,221.80, 411,138.30 and 124,533.80 is: 186,712.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,221.80 : 411,138.30 = 124,533.80 : x
  2. Step 2: Convert to fraction form
    274,221.80/411,138.30 = 124,533.80/x
  3. Step 3: Cross multiply
    274,221.80x = 411,138.30 × 124,533.80
  4. Step 4: Simplify right side
    274,221.80x = 51,200,614,824.54
  5. Step 5: Solve for x
    x = 51,200,614,824.54/274,221.80
  6. Step 6: Final answer
    x = 186,712.42

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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.