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Finding the Fourth Proportional to 171,258.73, 256,927.16 and 92,371.21

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Solution

The fourth proportional to 171,258.73, 256,927.16 and 92,371.21 is: 138,577.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,258.73 : 256,927.16 = 92,371.21 : x
  2. Step 2: Convert to fraction form
    171,258.73/256,927.16 = 92,371.21/x
  3. Step 3: Cross multiply
    171,258.73x = 256,927.16 × 92,371.21
  4. Step 4: Simplify right side
    171,258.73x = 23,732,672,651.06
  5. Step 5: Solve for x
    x = 23,732,672,651.06/171,258.73
  6. Step 6: Final answer
    x = 138,577.89

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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.