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Finding the Fourth Proportional to 86,096.87, 118,812.87 and 47,855.42

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Solution

The fourth proportional to 86,096.87, 118,812.87 and 47,855.42 is: 66,040.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,096.87 : 118,812.87 = 47,855.42 : x
  2. Step 2: Convert to fraction form
    86,096.87/118,812.87 = 47,855.42/x
  3. Step 3: Cross multiply
    86,096.87x = 118,812.87 × 47,855.42
  4. Step 4: Simplify right side
    86,096.87x = 5,685,839,201.19
  5. Step 5: Solve for x
    x = 5,685,839,201.19/86,096.87
  6. Step 6: Final answer
    x = 66,040.03

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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.