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Finding the Fourth Proportional to 170,829, 255,922.74 and 157,940.28

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Solution

The fourth proportional to 170,829, 255,922.74 and 157,940.28 is: 236,613.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,829 : 255,922.74 = 157,940.28 : x
  2. Step 2: Convert to fraction form
    170,829/255,922.74 = 157,940.28/x
  3. Step 3: Cross multiply
    170,829x = 255,922.74 × 157,940.28
  4. Step 4: Simplify right side
    170,829x = 40,420,509,213.97
  5. Step 5: Solve for x
    x = 40,420,509,213.97/170,829
  6. Step 6: Final answer
    x = 236,613.86

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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.