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Finding the Fourth Proportional to 104,498.06, 144,267.11 and 68,791.87

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Solution

The fourth proportional to 104,498.06, 144,267.11 and 68,791.87 is: 94,972.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,498.06 : 144,267.11 = 68,791.87 : x
  2. Step 2: Convert to fraction form
    104,498.06/144,267.11 = 68,791.87/x
  3. Step 3: Cross multiply
    104,498.06x = 144,267.11 × 68,791.87
  4. Step 4: Simplify right side
    104,498.06x = 9,924,404,200.85
  5. Step 5: Solve for x
    x = 9,924,404,200.85/104,498.06
  6. Step 6: Final answer
    x = 94,972.13

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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.