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Finding the Fourth Proportional to 265,850.80, 399,067.80 and 166,123.60

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Solution

The fourth proportional to 265,850.80, 399,067.80 and 166,123.60 is: 249,367.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,850.80 : 399,067.80 = 166,123.60 : x
  2. Step 2: Convert to fraction form
    265,850.80/399,067.80 = 166,123.60/x
  3. Step 3: Cross multiply
    265,850.80x = 399,067.80 × 166,123.60
  4. Step 4: Simplify right side
    265,850.80x = 66,294,579,580.08
  5. Step 5: Solve for x
    x = 66,294,579,580.08/265,850.80
  6. Step 6: Final answer
    x = 249,367.61

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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.