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Finding the Fourth Proportional to 171,184.20, 256,970.70 and 92,257.80

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Solution

The fourth proportional to 171,184.20, 256,970.70 and 92,257.80 is: 138,491.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,184.20 : 256,970.70 = 92,257.80 : x
  2. Step 2: Convert to fraction form
    171,184.20/256,970.70 = 92,257.80/x
  3. Step 3: Cross multiply
    171,184.20x = 256,970.70 × 92,257.80
  4. Step 4: Simplify right side
    171,184.20x = 23,707,551,446.46
  5. Step 5: Solve for x
    x = 23,707,551,446.46/171,184.20
  6. Step 6: Final answer
    x = 138,491.47

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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.