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Finding the Fourth Proportional to 274,003.80, 410,811.30 and 124,315.80

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Solution

The fourth proportional to 274,003.80, 410,811.30 and 124,315.80 is: 186,385.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,003.80 : 410,811.30 = 124,315.80 : x
  2. Step 2: Convert to fraction form
    274,003.80/410,811.30 = 124,315.80/x
  3. Step 3: Cross multiply
    274,003.80x = 410,811.30 × 124,315.80
  4. Step 4: Simplify right side
    274,003.80x = 51,070,335,408.54
  5. Step 5: Solve for x
    x = 51,070,335,408.54/274,003.80
  6. Step 6: Final answer
    x = 186,385.50

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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.