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Finding the Fourth Proportional to 104,509.81, 156,806.25 and 33,443.39

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Solution

The fourth proportional to 104,509.81, 156,806.25 and 33,443.39 is: 50,178.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,509.81 : 156,806.25 = 33,443.39 : x
  2. Step 2: Convert to fraction form
    104,509.81/156,806.25 = 33,443.39/x
  3. Step 3: Cross multiply
    104,509.81x = 156,806.25 × 33,443.39
  4. Step 4: Simplify right side
    104,509.81x = 5,244,132,573.19
  5. Step 5: Solve for x
    x = 5,244,132,573.19/104,509.81
  6. Step 6: Final answer
    x = 50,178.38

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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.