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Finding the Fourth Proportional to 119,377.43, 164,764.25 and 68,424.31

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Solution

The fourth proportional to 119,377.43, 164,764.25 and 68,424.31 is: 94,438.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,377.43 : 164,764.25 = 68,424.31 : x
  2. Step 2: Convert to fraction form
    119,377.43/164,764.25 = 68,424.31/x
  3. Step 3: Cross multiply
    119,377.43x = 164,764.25 × 68,424.31
  4. Step 4: Simplify right side
    119,377.43x = 11,273,880,118.92
  5. Step 5: Solve for x
    x = 11,273,880,118.92/119,377.43
  6. Step 6: Final answer
    x = 94,438.96

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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.