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Finding the Fourth Proportional to 167,321.88, 251,020.26 and 56,511

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Solution

The fourth proportional to 167,321.88, 251,020.26 and 56,511 is: 84,779.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,321.88 : 251,020.26 = 56,511 : x
  2. Step 2: Convert to fraction form
    167,321.88/251,020.26 = 56,511/x
  3. Step 3: Cross multiply
    167,321.88x = 251,020.26 × 56,511
  4. Step 4: Simplify right side
    167,321.88x = 14,185,405,912.86
  5. Step 5: Solve for x
    x = 14,185,405,912.86/167,321.88
  6. Step 6: Final answer
    x = 84,779.14

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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.