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Finding the Fourth Proportional to 312,599.77, 468,921.26 and 125,611.33

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Solution

The fourth proportional to 312,599.77, 468,921.26 and 125,611.33 is: 188,425.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,599.77 : 468,921.26 = 125,611.33 : x
  2. Step 2: Convert to fraction form
    312,599.77/468,921.26 = 125,611.33/x
  3. Step 3: Cross multiply
    312,599.77x = 468,921.26 × 125,611.33
  4. Step 4: Simplify right side
    312,599.77x = 58,901,822,505.82
  5. Step 5: Solve for x
    x = 58,901,822,505.82/312,599.77
  6. Step 6: Final answer
    x = 188,425.67

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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.