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Finding the Fourth Proportional to 189,049.96, 283,600.86 and 83,866.60

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Solution

The fourth proportional to 189,049.96, 283,600.86 and 83,866.60 is: 125,811.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,049.96 : 283,600.86 = 83,866.60 : x
  2. Step 2: Convert to fraction form
    189,049.96/283,600.86 = 83,866.60/x
  3. Step 3: Cross multiply
    189,049.96x = 283,600.86 × 83,866.60
  4. Step 4: Simplify right side
    189,049.96x = 23,784,639,885.28
  5. Step 5: Solve for x
    x = 23,784,639,885.28/189,049.96
  6. Step 6: Final answer
    x = 125,811.40

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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.