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Finding the Fourth Proportional to 136,260.84, 188,044.02 and 82,555.68

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Solution

The fourth proportional to 136,260.84, 188,044.02 and 82,555.68 is: 113,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,260.84 : 188,044.02 = 82,555.68 : x
  2. Step 2: Convert to fraction form
    136,260.84/188,044.02 = 82,555.68/x
  3. Step 3: Cross multiply
    136,260.84x = 188,044.02 × 82,555.68
  4. Step 4: Simplify right side
    136,260.84x = 15,524,101,941.03
  5. Step 5: Solve for x
    x = 15,524,101,941.03/136,260.84
  6. Step 6: Final answer
    x = 113,929.30

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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.