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Finding the Fourth Proportional to 192,124.20, 287,819.10 and 103,348.20

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Solution

The fourth proportional to 192,124.20, 287,819.10 and 103,348.20 is: 154,824.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,124.20 : 287,819.10 = 103,348.20 : x
  2. Step 2: Convert to fraction form
    192,124.20/287,819.10 = 103,348.20/x
  3. Step 3: Cross multiply
    192,124.20x = 287,819.10 × 103,348.20
  4. Step 4: Simplify right side
    192,124.20x = 29,745,585,910.62
  5. Step 5: Solve for x
    x = 29,745,585,910.62/192,124.20
  6. Step 6: Final answer
    x = 154,824.77

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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.