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Finding the Fourth Proportional to 192,558.75, 288,980.00 and 91,357.17

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Solution

The fourth proportional to 192,558.75, 288,980.00 and 91,357.17 is: 137,103.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,558.75 : 288,980.00 = 91,357.17 : x
  2. Step 2: Convert to fraction form
    192,558.75/288,980.00 = 91,357.17/x
  3. Step 3: Cross multiply
    192,558.75x = 288,980.00 × 91,357.17
  4. Step 4: Simplify right side
    192,558.75x = 26,400,393,313.31
  5. Step 5: Solve for x
    x = 26,400,393,313.31/192,558.75
  6. Step 6: Final answer
    x = 137,103.06

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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.