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Finding the Fourth Proportional to 120,483.11, 166,267.11 and 66,769.04

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Solution

The fourth proportional to 120,483.11, 166,267.11 and 66,769.04 is: 92,141.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,483.11 : 166,267.11 = 66,769.04 : x
  2. Step 2: Convert to fraction form
    120,483.11/166,267.11 = 66,769.04/x
  3. Step 3: Cross multiply
    120,483.11x = 166,267.11 × 66,769.04
  4. Step 4: Simplify right side
    120,483.11x = 11,101,495,984.33
  5. Step 5: Solve for x
    x = 11,101,495,984.33/120,483.11
  6. Step 6: Final answer
    x = 92,141.51

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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.