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Finding the Fourth Proportional to 144,551.88, 199,482.30 and 80,890.56

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Solution

The fourth proportional to 144,551.88, 199,482.30 and 80,890.56 is: 111,629.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,551.88 : 199,482.30 = 80,890.56 : x
  2. Step 2: Convert to fraction form
    144,551.88/199,482.30 = 80,890.56/x
  3. Step 3: Cross multiply
    144,551.88x = 199,482.30 × 80,890.56
  4. Step 4: Simplify right side
    144,551.88x = 16,136,234,957.09
  5. Step 5: Solve for x
    x = 16,136,234,957.09/144,551.88
  6. Step 6: Final answer
    x = 111,629.37

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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.