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Finding the Fourth Proportional to 147,361.65, 203,359.08 and 80,293.65

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Solution

The fourth proportional to 147,361.65, 203,359.08 and 80,293.65 is: 110,805.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,361.65 : 203,359.08 = 80,293.65 : x
  2. Step 2: Convert to fraction form
    147,361.65/203,359.08 = 80,293.65/x
  3. Step 3: Cross multiply
    147,361.65x = 203,359.08 × 80,293.65
  4. Step 4: Simplify right side
    147,361.65x = 16,328,443,591.62
  5. Step 5: Solve for x
    x = 16,328,443,591.62/147,361.65
  6. Step 6: Final answer
    x = 110,805.24

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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.