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Finding the Fourth Proportional to 192,771.58, 289,156.45 and 128,594.06

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Solution

The fourth proportional to 192,771.58, 289,156.45 and 128,594.06 is: 192,890.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,771.58 : 289,156.45 = 128,594.06 : x
  2. Step 2: Convert to fraction form
    192,771.58/289,156.45 = 128,594.06/x
  3. Step 3: Cross multiply
    192,771.58x = 289,156.45 × 128,594.06
  4. Step 4: Simplify right side
    192,771.58x = 37,183,801,880.69
  5. Step 5: Solve for x
    x = 37,183,801,880.69/192,771.58
  6. Step 6: Final answer
    x = 192,890.48

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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.