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Finding the Fourth Proportional to 86,826.33, 130,244.54 and 33,518.57

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Solution

The fourth proportional to 86,826.33, 130,244.54 and 33,518.57 is: 50,279.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,826.33 : 130,244.54 = 33,518.57 : x
  2. Step 2: Convert to fraction form
    86,826.33/130,244.54 = 33,518.57/x
  3. Step 3: Cross multiply
    86,826.33x = 130,244.54 × 33,518.57
  4. Step 4: Simplify right side
    86,826.33x = 4,365,609,912.29
  5. Step 5: Solve for x
    x = 4,365,609,912.29/86,826.33
  6. Step 6: Final answer
    x = 50,279.79

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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.