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Finding the Fourth Proportional to 96,203.40, 132,721.86 and 63,953.61

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Solution

The fourth proportional to 96,203.40, 132,721.86 and 63,953.61 is: 88,230.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,203.40 : 132,721.86 = 63,953.61 : x
  2. Step 2: Convert to fraction form
    96,203.40/132,721.86 = 63,953.61/x
  3. Step 3: Cross multiply
    96,203.40x = 132,721.86 × 63,953.61
  4. Step 4: Simplify right side
    96,203.40x = 8,488,042,072.91
  5. Step 5: Solve for x
    x = 8,488,042,072.91/96,203.40
  6. Step 6: Final answer
    x = 88,230.17

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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.