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Finding the Fourth Proportional to 83,270.70, 124,869.60 and 33,334.20

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Solution

The fourth proportional to 83,270.70, 124,869.60 and 33,334.20 is: 49,986.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,270.70 : 124,869.60 = 33,334.20 : x
  2. Step 2: Convert to fraction form
    83,270.70/124,869.60 = 33,334.20/x
  3. Step 3: Cross multiply
    83,270.70x = 124,869.60 × 33,334.20
  4. Step 4: Simplify right side
    83,270.70x = 4,162,428,220.32
  5. Step 5: Solve for x
    x = 4,162,428,220.32/83,270.70
  6. Step 6: Final answer
    x = 49,986.71

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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.