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Finding the Fourth Proportional to 127,846.71, 191,825.46 and 68,613.21

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Solution

The fourth proportional to 127,846.71, 191,825.46 and 68,613.21 is: 102,949.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,846.71 : 191,825.46 = 68,613.21 : x
  2. Step 2: Convert to fraction form
    127,846.71/191,825.46 = 68,613.21/x
  3. Step 3: Cross multiply
    127,846.71x = 191,825.46 × 68,613.21
  4. Step 4: Simplify right side
    127,846.71x = 13,161,760,570.33
  5. Step 5: Solve for x
    x = 13,161,760,570.33/127,846.71
  6. Step 6: Final answer
    x = 102,949.54

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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.