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Finding the Fourth Proportional to 144,410.88, 199,296.21 and 80,748.66

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Solution

The fourth proportional to 144,410.88, 199,296.21 and 80,748.66 is: 111,438.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,410.88 : 199,296.21 = 80,748.66 : x
  2. Step 2: Convert to fraction form
    144,410.88/199,296.21 = 80,748.66/x
  3. Step 3: Cross multiply
    144,410.88x = 199,296.21 × 80,748.66
  4. Step 4: Simplify right side
    144,410.88x = 16,092,902,950.75
  5. Step 5: Solve for x
    x = 16,092,902,950.75/144,410.88
  6. Step 6: Final answer
    x = 111,438.30

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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.