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Finding the Fourth Proportional to 186,791.44, 257,793.69 and 104,013.76

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Solution

The fourth proportional to 186,791.44, 257,793.69 and 104,013.76 is: 143,550.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,791.44 : 257,793.69 = 104,013.76 : x
  2. Step 2: Convert to fraction form
    186,791.44/257,793.69 = 104,013.76/x
  3. Step 3: Cross multiply
    186,791.44x = 257,793.69 × 104,013.76
  4. Step 4: Simplify right side
    186,791.44x = 26,814,091,001.17
  5. Step 5: Solve for x
    x = 26,814,091,001.17/186,791.44
  6. Step 6: Final answer
    x = 143,550.96

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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.