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Finding the Fourth Proportional to 268,997.69, 371,199.71 and 161,572.25

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Solution

The fourth proportional to 268,997.69, 371,199.71 and 161,572.25 is: 222,959.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,997.69 : 371,199.71 = 161,572.25 : x
  2. Step 2: Convert to fraction form
    268,997.69/371,199.71 = 161,572.25/x
  3. Step 3: Cross multiply
    268,997.69x = 371,199.71 × 161,572.25
  4. Step 4: Simplify right side
    268,997.69x = 59,975,571,536.19
  5. Step 5: Solve for x
    x = 59,975,571,536.19/268,997.69
  6. Step 6: Final answer
    x = 222,959.43

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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.