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Finding the Fourth Proportional to 136,051.73, 187,743.34 and 75,620.29

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Solution

The fourth proportional to 136,051.73, 187,743.34 and 75,620.29 is: 104,351.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,051.73 : 187,743.34 = 75,620.29 : x
  2. Step 2: Convert to fraction form
    136,051.73/187,743.34 = 75,620.29/x
  3. Step 3: Cross multiply
    136,051.73x = 187,743.34 × 75,620.29
  4. Step 4: Simplify right side
    136,051.73x = 14,197,206,145.57
  5. Step 5: Solve for x
    x = 14,197,206,145.57/136,051.73
  6. Step 6: Final answer
    x = 104,351.53

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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.