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Finding the Fourth Proportional to 332,858.89, 499,080.30 and 140,634.50

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Solution

The fourth proportional to 332,858.89, 499,080.30 and 140,634.50 is: 210,863.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,858.89 : 499,080.30 = 140,634.50 : x
  2. Step 2: Convert to fraction form
    332,858.89/499,080.30 = 140,634.50/x
  3. Step 3: Cross multiply
    332,858.89x = 499,080.30 × 140,634.50
  4. Step 4: Simplify right side
    332,858.89x = 70,187,908,450.35
  5. Step 5: Solve for x
    x = 70,187,908,450.35/332,858.89
  6. Step 6: Final answer
    x = 210,863.85

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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.