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Finding the Fourth Proportional to 120,847.60, 166,764.03 and 67,135.89

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Solution

The fourth proportional to 120,847.60, 166,764.03 and 67,135.89 is: 92,644.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,847.60 : 166,764.03 = 67,135.89 : x
  2. Step 2: Convert to fraction form
    120,847.60/166,764.03 = 67,135.89/x
  3. Step 3: Cross multiply
    120,847.60x = 166,764.03 × 67,135.89
  4. Step 4: Simplify right side
    120,847.60x = 11,195,852,325.28
  5. Step 5: Solve for x
    x = 11,195,852,325.28/120,847.60
  6. Step 6: Final answer
    x = 92,644.39

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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.