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Finding the Fourth Proportional to 192,050.33, 287,912.81 and 79,660.40

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Solution

The fourth proportional to 192,050.33, 287,912.81 and 79,660.40 is: 119,423.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,050.33 : 287,912.81 = 79,660.40 : x
  2. Step 2: Convert to fraction form
    192,050.33/287,912.81 = 79,660.40/x
  3. Step 3: Cross multiply
    192,050.33x = 287,912.81 × 79,660.40
  4. Step 4: Simplify right side
    192,050.33x = 22,935,248,369.31
  5. Step 5: Solve for x
    x = 22,935,248,369.31/192,050.33
  6. Step 6: Final answer
    x = 119,423.12

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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.