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Finding the Fourth Proportional to 312,246.60, 468,223.86 and 112,540.68

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Solution

The fourth proportional to 312,246.60, 468,223.86 and 112,540.68 is: 168,758.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,246.60 : 468,223.86 = 112,540.68 : x
  2. Step 2: Convert to fraction form
    312,246.60/468,223.86 = 112,540.68/x
  3. Step 3: Cross multiply
    312,246.60x = 468,223.86 × 112,540.68
  4. Step 4: Simplify right side
    312,246.60x = 52,694,231,596.62
  5. Step 5: Solve for x
    x = 52,694,231,596.62/312,246.60
  6. Step 6: Final answer
    x = 168,758.38

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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.