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Finding the Fourth Proportional to 120,765.95, 166,662.21 and 67,050.96

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Solution

The fourth proportional to 120,765.95, 166,662.21 and 67,050.96 is: 92,533.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,765.95 : 166,662.21 = 67,050.96 : x
  2. Step 2: Convert to fraction form
    120,765.95/166,662.21 = 67,050.96/x
  3. Step 3: Cross multiply
    120,765.95x = 166,662.21 × 67,050.96
  4. Step 4: Simplify right side
    120,765.95x = 11,174,861,176.22
  5. Step 5: Solve for x
    x = 11,174,861,176.22/120,765.95
  6. Step 6: Final answer
    x = 92,533.22

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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.