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Finding the Fourth Proportional to 169,838.38, 254,757.21 and 45,179.38

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Solution

The fourth proportional to 169,838.38, 254,757.21 and 45,179.38 is: 67,768.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,838.38 : 254,757.21 = 45,179.38 : x
  2. Step 2: Convert to fraction form
    169,838.38/254,757.21 = 45,179.38/x
  3. Step 3: Cross multiply
    169,838.38x = 254,757.21 × 45,179.38
  4. Step 4: Simplify right side
    169,838.38x = 11,509,772,798.33
  5. Step 5: Solve for x
    x = 11,509,772,798.33/169,838.38
  6. Step 6: Final answer
    x = 67,768.97

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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.