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Finding the Fourth Proportional to 86,912.41, 119,940.93 and 52,922.31

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Solution

The fourth proportional to 86,912.41, 119,940.93 and 52,922.31 is: 73,033.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,912.41 : 119,940.93 = 52,922.31 : x
  2. Step 2: Convert to fraction form
    86,912.41/119,940.93 = 52,922.31/x
  3. Step 3: Cross multiply
    86,912.41x = 119,940.93 × 52,922.31
  4. Step 4: Simplify right side
    86,912.41x = 6,347,551,079.15
  5. Step 5: Solve for x
    x = 6,347,551,079.15/86,912.41
  6. Step 6: Final answer
    x = 73,033.89

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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.