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Finding the Fourth Proportional to 273,738.32, 410,616.12 and 86,751.44

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Solution

The fourth proportional to 273,738.32, 410,616.12 and 86,751.44 is: 130,129.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,738.32 : 410,616.12 = 86,751.44 : x
  2. Step 2: Convert to fraction form
    273,738.32/410,616.12 = 86,751.44/x
  3. Step 3: Cross multiply
    273,738.32x = 410,616.12 × 86,751.44
  4. Step 4: Simplify right side
    273,738.32x = 35,621,539,697.21
  5. Step 5: Solve for x
    x = 35,621,539,697.21/273,738.32
  6. Step 6: Final answer
    x = 130,129.90

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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.