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Finding the Fourth Proportional to 169,635.82, 254,066.17 and 80,951.60

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Solution

The fourth proportional to 169,635.82, 254,066.17 and 80,951.60 is: 121,242.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,635.82 : 254,066.17 = 80,951.60 : x
  2. Step 2: Convert to fraction form
    169,635.82/254,066.17 = 80,951.60/x
  3. Step 3: Cross multiply
    169,635.82x = 254,066.17 × 80,951.60
  4. Step 4: Simplify right side
    169,635.82x = 20,567,062,967.37
  5. Step 5: Solve for x
    x = 20,567,062,967.37/169,635.82
  6. Step 6: Final answer
    x = 121,242.45

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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.