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Finding the Fourth Proportional to 79,082.94, 118,493.15 and 55,660.14

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Solution

The fourth proportional to 79,082.94, 118,493.15 and 55,660.14 is: 83,397.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,082.94 : 118,493.15 = 55,660.14 : x
  2. Step 2: Convert to fraction form
    79,082.94/118,493.15 = 55,660.14/x
  3. Step 3: Cross multiply
    79,082.94x = 118,493.15 × 55,660.14
  4. Step 4: Simplify right side
    79,082.94x = 6,595,345,318.04
  5. Step 5: Solve for x
    x = 6,595,345,318.04/79,082.94
  6. Step 6: Final answer
    x = 83,397.83

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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.