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Finding the Fourth Proportional to 269,793.12, 372,359.53 and 257,835.36

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Solution

The fourth proportional to 269,793.12, 372,359.53 and 257,835.36 is: 355,855.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,793.12 : 372,359.53 = 257,835.36 : x
  2. Step 2: Convert to fraction form
    269,793.12/372,359.53 = 257,835.36/x
  3. Step 3: Cross multiply
    269,793.12x = 372,359.53 × 257,835.36
  4. Step 4: Simplify right side
    269,793.12x = 96,007,453,466.98
  5. Step 5: Solve for x
    x = 96,007,453,466.98/269,793.12
  6. Step 6: Final answer
    x = 355,855.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.