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Finding the Fourth Proportional to 119,378.85, 164,766.22 and 68,425.73

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Solution

The fourth proportional to 119,378.85, 164,766.22 and 68,425.73 is: 94,440.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,378.85 : 164,766.22 = 68,425.73 : x
  2. Step 2: Convert to fraction form
    119,378.85/164,766.22 = 68,425.73/x
  3. Step 3: Cross multiply
    119,378.85x = 164,766.22 × 68,425.73
  4. Step 4: Simplify right side
    119,378.85x = 11,274,248,505.82
  5. Step 5: Solve for x
    x = 11,274,248,505.82/119,378.85
  6. Step 6: Final answer
    x = 94,440.92

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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.