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Finding the Fourth Proportional to 192,672.20, 289,008.30 and 92,880.20

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Solution

The fourth proportional to 192,672.20, 289,008.30 and 92,880.20 is: 139,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,672.20 : 289,008.30 = 92,880.20 : x
  2. Step 2: Convert to fraction form
    192,672.20/289,008.30 = 92,880.20/x
  3. Step 3: Cross multiply
    192,672.20x = 289,008.30 × 92,880.20
  4. Step 4: Simplify right side
    192,672.20x = 26,843,148,705.66
  5. Step 5: Solve for x
    x = 26,843,148,705.66/192,672.20
  6. Step 6: Final answer
    x = 139,320.30

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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.