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Finding the Fourth Proportional to 311,119.88, 466,861.06 and 131,194.28

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Solution

The fourth proportional to 311,119.88, 466,861.06 and 131,194.28 is: 196,867.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,119.88 : 466,861.06 = 131,194.28 : x
  2. Step 2: Convert to fraction form
    311,119.88/466,861.06 = 131,194.28/x
  3. Step 3: Cross multiply
    311,119.88x = 466,861.06 × 131,194.28
  4. Step 4: Simplify right side
    311,119.88x = 61,249,500,626.74
  5. Step 5: Solve for x
    x = 61,249,500,626.74/311,119.88
  6. Step 6: Final answer
    x = 196,867.85

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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.