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Finding the Fourth Proportional to 144,487.52, 199,403.28 and 80,845.82

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Solution

The fourth proportional to 144,487.52, 199,403.28 and 80,845.82 is: 111,573.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,487.52 : 199,403.28 = 80,845.82 : x
  2. Step 2: Convert to fraction form
    144,487.52/199,403.28 = 80,845.82/x
  3. Step 3: Cross multiply
    144,487.52x = 199,403.28 × 80,845.82
  4. Step 4: Simplify right side
    144,487.52x = 16,120,920,685.27
  5. Step 5: Solve for x
    x = 16,120,920,685.27/144,487.52
  6. Step 6: Final answer
    x = 111,573.11

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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.