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Finding the Fourth Proportional to 125,976.45, 173,843.94 and 68,614.47

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Solution

The fourth proportional to 125,976.45, 173,843.94 and 68,614.47 is: 94,686.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,976.45 : 173,843.94 = 68,614.47 : x
  2. Step 2: Convert to fraction form
    125,976.45/173,843.94 = 68,614.47/x
  3. Step 3: Cross multiply
    125,976.45x = 173,843.94 × 68,614.47
  4. Step 4: Simplify right side
    125,976.45x = 11,928,209,805.81
  5. Step 5: Solve for x
    x = 11,928,209,805.81/125,976.45
  6. Step 6: Final answer
    x = 94,686.03

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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.