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Finding the Fourth Proportional to 316,954.82, 437,377.83 and 173,704.70

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Solution

The fourth proportional to 316,954.82, 437,377.83 and 173,704.70 is: 239,701.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,954.82 : 437,377.83 = 173,704.70 : x
  2. Step 2: Convert to fraction form
    316,954.82/437,377.83 = 173,704.70/x
  3. Step 3: Cross multiply
    316,954.82x = 437,377.83 × 173,704.70
  4. Step 4: Simplify right side
    316,954.82x = 75,974,585,188.85
  5. Step 5: Solve for x
    x = 75,974,585,188.85/316,954.82
  6. Step 6: Final answer
    x = 239,701.62

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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.