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Finding the Fourth Proportional to 192,399.84, 288,604.80 and 91,174.14

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Solution

The fourth proportional to 192,399.84, 288,604.80 and 91,174.14 is: 136,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,399.84 : 288,604.80 = 91,174.14 : x
  2. Step 2: Convert to fraction form
    192,399.84/288,604.80 = 91,174.14/x
  3. Step 3: Cross multiply
    192,399.84x = 288,604.80 × 91,174.14
  4. Step 4: Simplify right side
    192,399.84x = 26,313,294,439.87
  5. Step 5: Solve for x
    x = 26,313,294,439.87/192,399.84
  6. Step 6: Final answer
    x = 136,763.60

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1.5x scale

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.