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Finding the Fourth Proportional to 136,713.20, 205,099.44 and 41,943.68

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Solution

The fourth proportional to 136,713.20, 205,099.44 and 41,943.68 is: 62,924.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,713.20 : 205,099.44 = 41,943.68 : x
  2. Step 2: Convert to fraction form
    136,713.20/205,099.44 = 41,943.68/x
  3. Step 3: Cross multiply
    136,713.20x = 205,099.44 × 41,943.68
  4. Step 4: Simplify right side
    136,713.20x = 8,602,625,279.54
  5. Step 5: Solve for x
    x = 8,602,625,279.54/136,713.20
  6. Step 6: Final answer
    x = 62,924.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.