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Finding the Fourth Proportional to 167,605.20, 251,213.40 and 67,699.80

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Solution

The fourth proportional to 167,605.20, 251,213.40 and 67,699.80 is: 101,471.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,605.20 : 251,213.40 = 67,699.80 : x
  2. Step 2: Convert to fraction form
    167,605.20/251,213.40 = 67,699.80/x
  3. Step 3: Cross multiply
    167,605.20x = 251,213.40 × 67,699.80
  4. Step 4: Simplify right side
    167,605.20x = 17,007,096,937.32
  5. Step 5: Solve for x
    x = 17,007,096,937.32/167,605.20
  6. Step 6: Final answer
    x = 101,471.18

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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.