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Finding the Fourth Proportional to 170,817.70, 256,226.55 and 108,763.30

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Solution

The fourth proportional to 170,817.70, 256,226.55 and 108,763.30 is: 163,144.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,817.70 : 256,226.55 = 108,763.30 : x
  2. Step 2: Convert to fraction form
    170,817.70/256,226.55 = 108,763.30/x
  3. Step 3: Cross multiply
    170,817.70x = 256,226.55 × 108,763.30
  4. Step 4: Simplify right side
    170,817.70x = 27,868,045,125.62
  5. Step 5: Solve for x
    x = 27,868,045,125.62/170,817.70
  6. Step 6: Final answer
    x = 163,144.95

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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.