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Finding the Fourth Proportional to 83,340.74, 125,018.71 and 27,166.43

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Solution

The fourth proportional to 83,340.74, 125,018.71 and 27,166.43 is: 40,752.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,340.74 : 125,018.71 = 27,166.43 : x
  2. Step 2: Convert to fraction form
    83,340.74/125,018.71 = 27,166.43/x
  3. Step 3: Cross multiply
    83,340.74x = 125,018.71 × 27,166.43
  4. Step 4: Simplify right side
    83,340.74x = 3,396,312,033.91
  5. Step 5: Solve for x
    x = 3,396,312,033.91/83,340.74
  6. Step 6: Final answer
    x = 40,752.12

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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.