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Finding the Fourth Proportional to 167,914.62, 251,959.41 and 74,398.50

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Solution

The fourth proportional to 167,914.62, 251,959.41 and 74,398.50 is: 111,636.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,914.62 : 251,959.41 = 74,398.50 : x
  2. Step 2: Convert to fraction form
    167,914.62/251,959.41 = 74,398.50/x
  3. Step 3: Cross multiply
    167,914.62x = 251,959.41 × 74,398.50
  4. Step 4: Simplify right side
    167,914.62x = 18,745,402,164.89
  5. Step 5: Solve for x
    x = 18,745,402,164.89/167,914.62
  6. Step 6: Final answer
    x = 111,636.51

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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.