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Finding the Fourth Proportional to 311,142.20, 466,713.30 and 236,492.60

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Solution

The fourth proportional to 311,142.20, 466,713.30 and 236,492.60 is: 354,738.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,142.20 : 466,713.30 = 236,492.60 : x
  2. Step 2: Convert to fraction form
    311,142.20/466,713.30 = 236,492.60/x
  3. Step 3: Cross multiply
    311,142.20x = 466,713.30 × 236,492.60
  4. Step 4: Simplify right side
    311,142.20x = 110,374,241,771.58
  5. Step 5: Solve for x
    x = 110,374,241,771.58/311,142.20
  6. Step 6: Final answer
    x = 354,738.90

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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.