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Finding the Fourth Proportional to 110,205.56, 152,100.30 and 67,210

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Solution

The fourth proportional to 110,205.56, 152,100.30 and 67,210 is: 92,759.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,205.56 : 152,100.30 = 67,210 : x
  2. Step 2: Convert to fraction form
    110,205.56/152,100.30 = 67,210/x
  3. Step 3: Cross multiply
    110,205.56x = 152,100.30 × 67,210
  4. Step 4: Simplify right side
    110,205.56x = 10,222,661,163
  5. Step 5: Solve for x
    x = 10,222,661,163/110,205.56
  6. Step 6: Final answer
    x = 92,759.94

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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.