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Finding the Fourth Proportional to 68,397.52, 94,427.84 and 52,137.17

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Solution

The fourth proportional to 68,397.52, 94,427.84 and 52,137.17 is: 71,979.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,397.52 : 94,427.84 = 52,137.17 : x
  2. Step 2: Convert to fraction form
    68,397.52/94,427.84 = 52,137.17/x
  3. Step 3: Cross multiply
    68,397.52x = 94,427.84 × 52,137.17
  4. Step 4: Simplify right side
    68,397.52x = 4,923,200,086.13
  5. Step 5: Solve for x
    x = 4,923,200,086.13/68,397.52
  6. Step 6: Final answer
    x = 71,979.22

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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.