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Finding the Fourth Proportional to 228,205.92, 314,899.94 and 126,215.17

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Solution

The fourth proportional to 228,205.92, 314,899.94 and 126,215.17 is: 174,163.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,205.92 : 314,899.94 = 126,215.17 : x
  2. Step 2: Convert to fraction form
    228,205.92/314,899.94 = 126,215.17/x
  3. Step 3: Cross multiply
    228,205.92x = 314,899.94 × 126,215.17
  4. Step 4: Simplify right side
    228,205.92x = 39,745,150,049.73
  5. Step 5: Solve for x
    x = 39,745,150,049.73/228,205.92
  6. Step 6: Final answer
    x = 174,163.54

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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.