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Finding the Fourth Proportional to 120,796.56, 181,219.74 and 45,902.76

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Solution

The fourth proportional to 120,796.56, 181,219.74 and 45,902.76 is: 68,863.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,796.56 : 181,219.74 = 45,902.76 : x
  2. Step 2: Convert to fraction form
    120,796.56/181,219.74 = 45,902.76/x
  3. Step 3: Cross multiply
    120,796.56x = 181,219.74 × 45,902.76
  4. Step 4: Simplify right side
    120,796.56x = 8,318,486,232.48
  5. Step 5: Solve for x
    x = 8,318,486,232.48/120,796.56
  6. Step 6: Final answer
    x = 68,863.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.