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Finding the Fourth Proportional to 173,613.70, 260,439 and 55,257.37

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Solution

The fourth proportional to 173,613.70, 260,439 and 55,257.37 is: 82,891.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,613.70 : 260,439 = 55,257.37 : x
  2. Step 2: Convert to fraction form
    173,613.70/260,439 = 55,257.37/x
  3. Step 3: Cross multiply
    173,613.70x = 260,439 × 55,257.37
  4. Step 4: Simplify right side
    173,613.70x = 14,391,174,185.43
  5. Step 5: Solve for x
    x = 14,391,174,185.43/173,613.70
  6. Step 6: Final answer
    x = 82,891.93

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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.