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Finding the Fourth Proportional to 235,620.95, 353,435.09 and 223,658.06

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Solution

The fourth proportional to 235,620.95, 353,435.09 and 223,658.06 is: 335,490.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,620.95 : 353,435.09 = 223,658.06 : x
  2. Step 2: Convert to fraction form
    235,620.95/353,435.09 = 223,658.06/x
  3. Step 3: Cross multiply
    235,620.95x = 353,435.09 × 223,658.06
  4. Step 4: Simplify right side
    235,620.95x = 79,048,603,679.86
  5. Step 5: Solve for x
    x = 79,048,603,679.86/235,620.95
  6. Step 6: Final answer
    x = 335,490.56

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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.