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Finding the Fourth Proportional to 168,010.23, 251,927.85 and 79,239.90

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Solution

The fourth proportional to 168,010.23, 251,927.85 and 79,239.90 is: 118,818.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,010.23 : 251,927.85 = 79,239.90 : x
  2. Step 2: Convert to fraction form
    168,010.23/251,927.85 = 79,239.90/x
  3. Step 3: Cross multiply
    168,010.23x = 251,927.85 × 79,239.90
  4. Step 4: Simplify right side
    168,010.23x = 19,962,737,641.22
  5. Step 5: Solve for x
    x = 19,962,737,641.22/168,010.23
  6. Step 6: Final answer
    x = 118,818.58

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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.