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Finding the Fourth Proportional to 68,559.94, 102,833.43 and 21,804.58

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Solution

The fourth proportional to 68,559.94, 102,833.43 and 21,804.58 is: 32,704.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,559.94 : 102,833.43 = 21,804.58 : x
  2. Step 2: Convert to fraction form
    68,559.94/102,833.43 = 21,804.58/x
  3. Step 3: Cross multiply
    68,559.94x = 102,833.43 × 21,804.58
  4. Step 4: Simplify right side
    68,559.94x = 2,242,239,751.11
  5. Step 5: Solve for x
    x = 2,242,239,751.11/68,559.94
  6. Step 6: Final answer
    x = 32,704.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.