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Finding the Fourth Proportional to 88,257, 121,710.84 and 58,067.94

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Solution

The fourth proportional to 88,257, 121,710.84 and 58,067.94 is: 80,078.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,257 : 121,710.84 = 58,067.94 : x
  2. Step 2: Convert to fraction form
    88,257/121,710.84 = 58,067.94/x
  3. Step 3: Cross multiply
    88,257x = 121,710.84 × 58,067.94
  4. Step 4: Simplify right side
    88,257x = 7,067,497,754.47
  5. Step 5: Solve for x
    x = 7,067,497,754.47/88,257
  6. Step 6: Final answer
    x = 80,078.61

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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.