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Finding the Fourth Proportional to 79,129.96, 118,694.64 and 32,382.84

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Solution

The fourth proportional to 79,129.96, 118,694.64 and 32,382.84 is: 48,574.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,129.96 : 118,694.64 = 32,382.84 : x
  2. Step 2: Convert to fraction form
    79,129.96/118,694.64 = 32,382.84/x
  3. Step 3: Cross multiply
    79,129.96x = 118,694.64 × 32,382.84
  4. Step 4: Simplify right side
    79,129.96x = 3,843,669,535.98
  5. Step 5: Solve for x
    x = 3,843,669,535.98/79,129.96
  6. Step 6: Final answer
    x = 48,574.14

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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.