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Finding the Fourth Proportional to 320,067.38, 480,125.56 and 95,410.64

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Solution

The fourth proportional to 320,067.38, 480,125.56 and 95,410.64 is: 143,123.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,067.38 : 480,125.56 = 95,410.64 : x
  2. Step 2: Convert to fraction form
    320,067.38/480,125.56 = 95,410.64/x
  3. Step 3: Cross multiply
    320,067.38x = 480,125.56 × 95,410.64
  4. Step 4: Simplify right side
    320,067.38x = 45,809,086,959.96
  5. Step 5: Solve for x
    x = 45,809,086,959.96/320,067.38
  6. Step 6: Final answer
    x = 143,123.26

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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.