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Finding the Fourth Proportional to 120,258.54, 165,912.03 and 92,671.34

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Solution

The fourth proportional to 120,258.54, 165,912.03 and 92,671.34 is: 127,851.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,258.54 : 165,912.03 = 92,671.34 : x
  2. Step 2: Convert to fraction form
    120,258.54/165,912.03 = 92,671.34/x
  3. Step 3: Cross multiply
    120,258.54x = 165,912.03 × 92,671.34
  4. Step 4: Simplify right side
    120,258.54x = 15,375,289,312.66
  5. Step 5: Solve for x
    x = 15,375,289,312.66/120,258.54
  6. Step 6: Final answer
    x = 127,851.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.