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Finding the Fourth Proportional to 120,796.28, 166,699.13 and 67,081.30

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Solution

The fourth proportional to 120,796.28, 166,699.13 and 67,081.30 is: 92,572.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,796.28 : 166,699.13 = 67,081.30 : x
  2. Step 2: Convert to fraction form
    120,796.28/166,699.13 = 67,081.30/x
  3. Step 3: Cross multiply
    120,796.28x = 166,699.13 × 67,081.30
  4. Step 4: Simplify right side
    120,796.28x = 11,182,394,100.22
  5. Step 5: Solve for x
    x = 11,182,394,100.22/120,796.28
  6. Step 6: Final answer
    x = 92,572.34

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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.