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Finding the Fourth Proportional to 117,361, 161,958.42 and 67,059.88

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Solution

The fourth proportional to 117,361, 161,958.42 and 67,059.88 is: 92,542.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,361 : 161,958.42 = 67,059.88 : x
  2. Step 2: Convert to fraction form
    117,361/161,958.42 = 67,059.88/x
  3. Step 3: Cross multiply
    117,361x = 161,958.42 × 67,059.88
  4. Step 4: Simplify right side
    117,361x = 10,860,912,210.19
  5. Step 5: Solve for x
    x = 10,860,912,210.19/117,361
  6. Step 6: Final answer
    x = 92,542.77

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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.