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Finding the Fourth Proportional to 316,736.87, 475,175.36 and 174,508.90

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Solution

The fourth proportional to 316,736.87, 475,175.36 and 174,508.90 is: 261,801.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,736.87 : 475,175.36 = 174,508.90 : x
  2. Step 2: Convert to fraction form
    316,736.87/475,175.36 = 174,508.90/x
  3. Step 3: Cross multiply
    316,736.87x = 475,175.36 × 174,508.90
  4. Step 4: Simplify right side
    316,736.87x = 82,922,328,629.04
  5. Step 5: Solve for x
    x = 82,922,328,629.04/316,736.87
  6. Step 6: Final answer
    x = 261,801.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.