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Finding the Fourth Proportional to 316,601.94, 436,920.57 and 173,375.58

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Solution

The fourth proportional to 316,601.94, 436,920.57 and 173,375.58 is: 239,263.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,601.94 : 436,920.57 = 173,375.58 : x
  2. Step 2: Convert to fraction form
    316,601.94/436,920.57 = 173,375.58/x
  3. Step 3: Cross multiply
    316,601.94x = 436,920.57 × 173,375.58
  4. Step 4: Simplify right side
    316,601.94x = 75,751,357,237.68
  5. Step 5: Solve for x
    x = 75,751,357,237.68/316,601.94
  6. Step 6: Final answer
    x = 239,263.72

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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.