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Finding the Fourth Proportional to 169,935.96, 254,889.20 and 79,957.31

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Solution

The fourth proportional to 169,935.96, 254,889.20 and 79,957.31 is: 119,929.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,935.96 : 254,889.20 = 79,957.31 : x
  2. Step 2: Convert to fraction form
    169,935.96/254,889.20 = 79,957.31/x
  3. Step 3: Cross multiply
    169,935.96x = 254,889.20 × 79,957.31
  4. Step 4: Simplify right side
    169,935.96x = 20,380,253,105.82
  5. Step 5: Solve for x
    x = 20,380,253,105.82/169,935.96
  6. Step 6: Final answer
    x = 119,929.02

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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.