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Finding the Fourth Proportional to 69,992.33, 104,966.93 and 20,059.04

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Solution

The fourth proportional to 69,992.33, 104,966.93 and 20,059.04 is: 30,082.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,992.33 : 104,966.93 = 20,059.04 : x
  2. Step 2: Convert to fraction form
    69,992.33/104,966.93 = 20,059.04/x
  3. Step 3: Cross multiply
    69,992.33x = 104,966.93 × 20,059.04
  4. Step 4: Simplify right side
    69,992.33x = 2,105,535,747.25
  5. Step 5: Solve for x
    x = 2,105,535,747.25/69,992.33
  6. Step 6: Final answer
    x = 30,082.38

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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.