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Finding the Fourth Proportional to 86,179.74, 118,928.62 and 50,362.60

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Solution

The fourth proportional to 86,179.74, 118,928.62 and 50,362.60 is: 69,500.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,179.74 : 118,928.62 = 50,362.60 : x
  2. Step 2: Convert to fraction form
    86,179.74/118,928.62 = 50,362.60/x
  3. Step 3: Cross multiply
    86,179.74x = 118,928.62 × 50,362.60
  4. Step 4: Simplify right side
    86,179.74x = 5,989,554,517.61
  5. Step 5: Solve for x
    x = 5,989,554,517.61/86,179.74
  6. Step 6: Final answer
    x = 69,500.73

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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.