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Finding the Fourth Proportional to 64,286.80, 88,633.44 and 49,922.31

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Solution

The fourth proportional to 64,286.80, 88,633.44 and 49,922.31 is: 68,828.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,286.80 : 88,633.44 = 49,922.31 : x
  2. Step 2: Convert to fraction form
    64,286.80/88,633.44 = 49,922.31/x
  3. Step 3: Cross multiply
    64,286.80x = 88,633.44 × 49,922.31
  4. Step 4: Simplify right side
    64,286.80x = 4,424,785,901.86
  5. Step 5: Solve for x
    x = 4,424,785,901.86/64,286.80
  6. Step 6: Final answer
    x = 68,828.84

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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.