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Finding the Fourth Proportional to 104,788.62, 144,332.82 and 80,543.22

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Solution

The fourth proportional to 104,788.62, 144,332.82 and 80,543.22 is: 110,937.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,788.62 : 144,332.82 = 80,543.22 : x
  2. Step 2: Convert to fraction form
    104,788.62/144,332.82 = 80,543.22/x
  3. Step 3: Cross multiply
    104,788.62x = 144,332.82 × 80,543.22
  4. Step 4: Simplify right side
    104,788.62x = 11,625,029,352.82
  5. Step 5: Solve for x
    x = 11,625,029,352.82/104,788.62
  6. Step 6: Final answer
    x = 110,937.90

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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.