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Finding the Fourth Proportional to 127,796.92, 176,343.42 and 71,200.60

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Solution

The fourth proportional to 127,796.92, 176,343.42 and 71,200.60 is: 98,247.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,796.92 : 176,343.42 = 71,200.60 : x
  2. Step 2: Convert to fraction form
    127,796.92/176,343.42 = 71,200.60/x
  3. Step 3: Cross multiply
    127,796.92x = 176,343.42 × 71,200.60
  4. Step 4: Simplify right side
    127,796.92x = 12,555,757,310.05
  5. Step 5: Solve for x
    x = 12,555,757,310.05/127,796.92
  6. Step 6: Final answer
    x = 98,247.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.