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Finding the Fourth Proportional to 85,067.73, 127,601.64 and 38,265.93

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Solution

The fourth proportional to 85,067.73, 127,601.64 and 38,265.93 is: 57,398.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,067.73 : 127,601.64 = 38,265.93 : x
  2. Step 2: Convert to fraction form
    85,067.73/127,601.64 = 38,265.93/x
  3. Step 3: Cross multiply
    85,067.73x = 127,601.64 × 38,265.93
  4. Step 4: Simplify right side
    85,067.73x = 4,882,795,424.13
  5. Step 5: Solve for x
    x = 4,882,795,424.13/85,067.73
  6. Step 6: Final answer
    x = 57,398.92

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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.