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Finding the Fourth Proportional to 312,626.87, 468,844.54 and 112,922.63

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Solution

The fourth proportional to 312,626.87, 468,844.54 and 112,922.63 is: 169,349.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,626.87 : 468,844.54 = 112,922.63 : x
  2. Step 2: Convert to fraction form
    312,626.87/468,844.54 = 112,922.63/x
  3. Step 3: Cross multiply
    312,626.87x = 468,844.54 × 112,922.63
  4. Step 4: Simplify right side
    312,626.87x = 52,943,158,517.94
  5. Step 5: Solve for x
    x = 52,943,158,517.94/312,626.87
  6. Step 6: Final answer
    x = 169,349.35

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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.