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Finding the Fourth Proportional to 147,367.50, 203,367.18 and 80,299.50

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Solution

The fourth proportional to 147,367.50, 203,367.18 and 80,299.50 is: 110,813.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,367.50 : 203,367.18 = 80,299.50 : x
  2. Step 2: Convert to fraction form
    147,367.50/203,367.18 = 80,299.50/x
  3. Step 3: Cross multiply
    147,367.50x = 203,367.18 × 80,299.50
  4. Step 4: Simplify right side
    147,367.50x = 16,330,282,870.41
  5. Step 5: Solve for x
    x = 16,330,282,870.41/147,367.50
  6. Step 6: Final answer
    x = 110,813.33

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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.