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Finding the Fourth Proportional to 88,185.92, 121,698.16 and 49,953.41

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Solution

The fourth proportional to 88,185.92, 121,698.16 and 49,953.41 is: 68,936.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,185.92 : 121,698.16 = 49,953.41 : x
  2. Step 2: Convert to fraction form
    88,185.92/121,698.16 = 49,953.41/x
  3. Step 3: Cross multiply
    88,185.92x = 121,698.16 × 49,953.41
  4. Step 4: Simplify right side
    88,185.92x = 6,079,238,086.71
  5. Step 5: Solve for x
    x = 6,079,238,086.71/88,185.92
  6. Step 6: Final answer
    x = 68,936.61

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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.