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Finding the Fourth Proportional to 167,761.69, 231,479.26 and 99,795.89

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Solution

The fourth proportional to 167,761.69, 231,479.26 and 99,795.89 is: 137,699.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,761.69 : 231,479.26 = 99,795.89 : x
  2. Step 2: Convert to fraction form
    167,761.69/231,479.26 = 99,795.89/x
  3. Step 3: Cross multiply
    167,761.69x = 231,479.26 × 99,795.89
  4. Step 4: Simplify right side
    167,761.69x = 23,100,677,329.52
  5. Step 5: Solve for x
    x = 23,100,677,329.52/167,761.69
  6. Step 6: Final answer
    x = 137,699.36

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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.