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Finding the Fourth Proportional to 293,890.85, 405,573.72 and 171,379.82

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Solution

The fourth proportional to 293,890.85, 405,573.72 and 171,379.82 is: 236,506.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,890.85 : 405,573.72 = 171,379.82 : x
  2. Step 2: Convert to fraction form
    293,890.85/405,573.72 = 171,379.82/x
  3. Step 3: Cross multiply
    293,890.85x = 405,573.72 × 171,379.82
  4. Step 4: Simplify right side
    293,890.85x = 69,507,149,102.46
  5. Step 5: Solve for x
    x = 69,507,149,102.46/293,890.85
  6. Step 6: Final answer
    x = 236,506.68

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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.