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Finding the Fourth Proportional to 120,695.92, 166,553.28 and 66,977.04

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Solution

The fourth proportional to 120,695.92, 166,553.28 and 66,977.04 is: 92,424.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,695.92 : 166,553.28 = 66,977.04 : x
  2. Step 2: Convert to fraction form
    120,695.92/166,553.28 = 66,977.04/x
  3. Step 3: Cross multiply
    120,695.92x = 166,553.28 × 66,977.04
  4. Step 4: Simplify right side
    120,695.92x = 11,155,245,696.69
  5. Step 5: Solve for x
    x = 11,155,245,696.69/120,695.92
  6. Step 6: Final answer
    x = 92,424.38

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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.