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Finding the Fourth Proportional to 125,975.95, 173,843.25 and 68,613.97

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Solution

The fourth proportional to 125,975.95, 173,843.25 and 68,613.97 is: 94,685.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,975.95 : 173,843.25 = 68,613.97 : x
  2. Step 2: Convert to fraction form
    125,975.95/173,843.25 = 68,613.97/x
  3. Step 3: Cross multiply
    125,975.95x = 173,843.25 × 68,613.97
  4. Step 4: Simplify right side
    125,975.95x = 11,928,075,540.20
  5. Step 5: Solve for x
    x = 11,928,075,540.20/125,975.95
  6. Step 6: Final answer
    x = 94,685.34

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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.