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Finding the Fourth Proportional to 169,865.78, 254,797.72 and 43,505.78

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Solution

The fourth proportional to 169,865.78, 254,797.72 and 43,505.78 is: 65,258.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,865.78 : 254,797.72 = 43,505.78 : x
  2. Step 2: Convert to fraction form
    169,865.78/254,797.72 = 43,505.78/x
  3. Step 3: Cross multiply
    169,865.78x = 254,797.72 × 43,505.78
  4. Step 4: Simplify right side
    169,865.78x = 11,085,172,168.07
  5. Step 5: Solve for x
    x = 11,085,172,168.07/169,865.78
  6. Step 6: Final answer
    x = 65,258.42

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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.