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Finding the Fourth Proportional to 263,189.80, 393,632.70 and 235,311.40

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Solution

The fourth proportional to 263,189.80, 393,632.70 and 235,311.40 is: 351,937.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,189.80 : 393,632.70 = 235,311.40 : x
  2. Step 2: Convert to fraction form
    263,189.80/393,632.70 = 235,311.40/x
  3. Step 3: Cross multiply
    263,189.80x = 393,632.70 × 235,311.40
  4. Step 4: Simplify right side
    263,189.80x = 92,626,261,722.78
  5. Step 5: Solve for x
    x = 92,626,261,722.78/263,189.80
  6. Step 6: Final answer
    x = 351,937.13

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.