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Finding the Fourth Proportional to 74,363.46, 111,544.50 and 18,203.82

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Solution

The fourth proportional to 74,363.46, 111,544.50 and 18,203.82 is: 27,305.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,363.46 : 111,544.50 = 18,203.82 : x
  2. Step 2: Convert to fraction form
    74,363.46/111,544.50 = 18,203.82/x
  3. Step 3: Cross multiply
    74,363.46x = 111,544.50 × 18,203.82
  4. Step 4: Simplify right side
    74,363.46x = 2,030,535,999.99
  5. Step 5: Solve for x
    x = 2,030,535,999.99/74,363.46
  6. Step 6: Final answer
    x = 27,305.56

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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.