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Finding the Fourth Proportional to 120,562.68, 166,375.68 and 66,847.72

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Solution

The fourth proportional to 120,562.68, 166,375.68 and 66,847.72 is: 92,249.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,562.68 : 166,375.68 = 66,847.72 : x
  2. Step 2: Convert to fraction form
    120,562.68/166,375.68 = 66,847.72/x
  3. Step 3: Cross multiply
    120,562.68x = 166,375.68 × 66,847.72
  4. Step 4: Simplify right side
    120,562.68x = 11,121,834,871.45
  5. Step 5: Solve for x
    x = 11,121,834,871.45/120,562.68
  6. Step 6: Final answer
    x = 92,249.40

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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.