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Finding the Fourth Proportional to 104,791.22, 144,612.56 and 57,044.56

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Solution

The fourth proportional to 104,791.22, 144,612.56 and 57,044.56 is: 78,721.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,791.22 : 144,612.56 = 57,044.56 : x
  2. Step 2: Convert to fraction form
    104,791.22/144,612.56 = 57,044.56/x
  3. Step 3: Cross multiply
    104,791.22x = 144,612.56 × 57,044.56
  4. Step 4: Simplify right side
    104,791.22x = 8,249,359,636.75
  5. Step 5: Solve for x
    x = 8,249,359,636.75/104,791.22
  6. Step 6: Final answer
    x = 78,721.86

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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.