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Finding the Fourth Proportional to 167,515.50, 231,171.39 and 92,064

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Solution

The fourth proportional to 167,515.50, 231,171.39 and 92,064 is: 127,048.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,515.50 : 231,171.39 = 92,064 : x
  2. Step 2: Convert to fraction form
    167,515.50/231,171.39 = 92,064/x
  3. Step 3: Cross multiply
    167,515.50x = 231,171.39 × 92,064
  4. Step 4: Simplify right side
    167,515.50x = 21,282,562,848.96
  5. Step 5: Solve for x
    x = 21,282,562,848.96/167,515.50
  6. Step 6: Final answer
    x = 127,048.32

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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.