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Finding the Fourth Proportional to 68,197.32, 94,086.84 and 68,092.20

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Solution

The fourth proportional to 68,197.32, 94,086.84 and 68,092.20 is: 93,941.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,197.32 : 94,086.84 = 68,092.20 : x
  2. Step 2: Convert to fraction form
    68,197.32/94,086.84 = 68,092.20/x
  3. Step 3: Cross multiply
    68,197.32x = 94,086.84 × 68,092.20
  4. Step 4: Simplify right side
    68,197.32x = 6,406,579,926.65
  5. Step 5: Solve for x
    x = 6,406,579,926.65/68,197.32
  6. Step 6: Final answer
    x = 93,941.81

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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.