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Finding the Fourth Proportional to 169,926.51, 254,889.75 and 80,910.14

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Solution

The fourth proportional to 169,926.51, 254,889.75 and 80,910.14 is: 121,365.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,926.51 : 254,889.75 = 80,910.14 : x
  2. Step 2: Convert to fraction form
    169,926.51/254,889.75 = 80,910.14/x
  3. Step 3: Cross multiply
    169,926.51x = 254,889.75 × 80,910.14
  4. Step 4: Simplify right side
    169,926.51x = 20,623,166,540.94
  5. Step 5: Solve for x
    x = 20,623,166,540.94/169,926.51
  6. Step 6: Final answer
    x = 121,365.21

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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.