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Finding the Fourth Proportional to 170,601.60, 255,940.80 and 100,444.80

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Solution

The fourth proportional to 170,601.60, 255,940.80 and 100,444.80 is: 150,689.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,601.60 : 255,940.80 = 100,444.80 : x
  2. Step 2: Convert to fraction form
    170,601.60/255,940.80 = 100,444.80/x
  3. Step 3: Cross multiply
    170,601.60x = 255,940.80 × 100,444.80
  4. Step 4: Simplify right side
    170,601.60x = 25,707,922,467.84
  5. Step 5: Solve for x
    x = 25,707,922,467.84/170,601.60
  6. Step 6: Final answer
    x = 150,689.81

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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.