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Finding the Fourth Proportional to 119,179.76, 164,574.86 and 88,912.53

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Solution

The fourth proportional to 119,179.76, 164,574.86 and 88,912.53 is: 122,778.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,179.76 : 164,574.86 = 88,912.53 : x
  2. Step 2: Convert to fraction form
    119,179.76/164,574.86 = 88,912.53/x
  3. Step 3: Cross multiply
    119,179.76x = 164,574.86 × 88,912.53
  4. Step 4: Simplify right side
    119,179.76x = 14,632,766,732.43
  5. Step 5: Solve for x
    x = 14,632,766,732.43/119,179.76
  6. Step 6: Final answer
    x = 122,778.96

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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.