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Finding the Fourth Proportional to 263,177.80, 393,614.70 and 235,299.40

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Solution

The fourth proportional to 263,177.80, 393,614.70 and 235,299.40 is: 351,919.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,177.80 : 393,614.70 = 235,299.40 : x
  2. Step 2: Convert to fraction form
    263,177.80/393,614.70 = 235,299.40/x
  3. Step 3: Cross multiply
    263,177.80x = 393,614.70 × 235,299.40
  4. Step 4: Simplify right side
    263,177.80x = 92,617,302,741.18
  5. Step 5: Solve for x
    x = 92,617,302,741.18/263,177.80
  6. Step 6: Final answer
    x = 351,919.13

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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.