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Finding the Fourth Proportional to 235,449.85, 353,174.77 and 69,237.85

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Solution

The fourth proportional to 235,449.85, 353,174.77 and 69,237.85 is: 103,856.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,449.85 : 353,174.77 = 69,237.85 : x
  2. Step 2: Convert to fraction form
    235,449.85/353,174.77 = 69,237.85/x
  3. Step 3: Cross multiply
    235,449.85x = 353,174.77 × 69,237.85
  4. Step 4: Simplify right side
    235,449.85x = 24,453,061,835.59
  5. Step 5: Solve for x
    x = 24,453,061,835.59/235,449.85
  6. Step 6: Final answer
    x = 103,856.77

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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.