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Finding the Fourth Proportional to 273,550.80, 410,364.60 and 86,542.80

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Solution

The fourth proportional to 273,550.80, 410,364.60 and 86,542.80 is: 129,826.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,550.80 : 410,364.60 = 86,542.80 : x
  2. Step 2: Convert to fraction form
    273,550.80/410,364.60 = 86,542.80/x
  3. Step 3: Cross multiply
    273,550.80x = 410,364.60 × 86,542.80
  4. Step 4: Simplify right side
    273,550.80x = 35,514,101,504.88
  5. Step 5: Solve for x
    x = 35,514,101,504.88/273,550.80
  6. Step 6: Final answer
    x = 129,826.35

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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.