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Finding the Fourth Proportional to 120,483.73, 166,267.98 and 66,769.66

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Solution

The fourth proportional to 120,483.73, 166,267.98 and 66,769.66 is: 92,142.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,483.73 : 166,267.98 = 66,769.66 : x
  2. Step 2: Convert to fraction form
    120,483.73/166,267.98 = 66,769.66/x
  3. Step 3: Cross multiply
    120,483.73x = 166,267.98 × 66,769.66
  4. Step 4: Simplify right side
    120,483.73x = 11,101,656,493.49
  5. Step 5: Solve for x
    x = 11,101,656,493.49/120,483.73
  6. Step 6: Final answer
    x = 92,142.37

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1.5x scale

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.