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Finding the Fourth Proportional to 189,016.20, 283,524.30 and 84,040.20

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Solution

The fourth proportional to 189,016.20, 283,524.30 and 84,040.20 is: 126,060.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,016.20 : 283,524.30 = 84,040.20 : x
  2. Step 2: Convert to fraction form
    189,016.20/283,524.30 = 84,040.20/x
  3. Step 3: Cross multiply
    189,016.20x = 283,524.30 × 84,040.20
  4. Step 4: Simplify right side
    189,016.20x = 23,827,438,876.86
  5. Step 5: Solve for x
    x = 23,827,438,876.86/189,016.20
  6. Step 6: Final answer
    x = 126,060.30

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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.