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Finding the Fourth Proportional to 117,694.90, 162,422.12 and 63,983.52

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Solution

The fourth proportional to 117,694.90, 162,422.12 and 63,983.52 is: 88,298.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,694.90 : 162,422.12 = 63,983.52 : x
  2. Step 2: Convert to fraction form
    117,694.90/162,422.12 = 63,983.52/x
  3. Step 3: Cross multiply
    117,694.90x = 162,422.12 × 63,983.52
  4. Step 4: Simplify right side
    117,694.90x = 10,392,338,963.46
  5. Step 5: Solve for x
    x = 10,392,338,963.46/117,694.90
  6. Step 6: Final answer
    x = 88,298.97

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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.