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Finding the Fourth Proportional to 273,626.94, 410,503.62 and 86,638.44

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Solution

The fourth proportional to 273,626.94, 410,503.62 and 86,638.44 is: 129,977.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,626.94 : 410,503.62 = 86,638.44 : x
  2. Step 2: Convert to fraction form
    273,626.94/410,503.62 = 86,638.44/x
  3. Step 3: Cross multiply
    273,626.94x = 410,503.62 × 86,638.44
  4. Step 4: Simplify right side
    273,626.94x = 35,565,393,251.15
  5. Step 5: Solve for x
    x = 35,565,393,251.15/273,626.94
  6. Step 6: Final answer
    x = 129,977.67

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1.5x scale

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.