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Finding the Fourth Proportional to 86,230.56, 118,991.74 and 48,497.52

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Solution

The fourth proportional to 86,230.56, 118,991.74 and 48,497.52 is: 66,922.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,230.56 : 118,991.74 = 48,497.52 : x
  2. Step 2: Convert to fraction form
    86,230.56/118,991.74 = 48,497.52/x
  3. Step 3: Cross multiply
    86,230.56x = 118,991.74 × 48,497.52
  4. Step 4: Simplify right side
    86,230.56x = 5,770,804,290.48
  5. Step 5: Solve for x
    x = 5,770,804,290.48/86,230.56
  6. Step 6: Final answer
    x = 66,922.96

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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.