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Finding the Fourth Proportional to 159,995.40, 220,821.96 and 92,007

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Solution

The fourth proportional to 159,995.40, 220,821.96 and 92,007 is: 126,985.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,995.40 : 220,821.96 = 92,007 : x
  2. Step 2: Convert to fraction form
    159,995.40/220,821.96 = 92,007/x
  3. Step 3: Cross multiply
    159,995.40x = 220,821.96 × 92,007
  4. Step 4: Simplify right side
    159,995.40x = 20,317,166,073.72
  5. Step 5: Solve for x
    x = 20,317,166,073.72/159,995.40
  6. Step 6: Final answer
    x = 126,985.94

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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.