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Finding the Fourth Proportional to 79,538.76, 119,308.14 and 32,790.42

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Solution

The fourth proportional to 79,538.76, 119,308.14 and 32,790.42 is: 49,185.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,538.76 : 119,308.14 = 32,790.42 : x
  2. Step 2: Convert to fraction form
    79,538.76/119,308.14 = 32,790.42/x
  3. Step 3: Cross multiply
    79,538.76x = 119,308.14 × 32,790.42
  4. Step 4: Simplify right side
    79,538.76x = 3,912,164,020.02
  5. Step 5: Solve for x
    x = 3,912,164,020.02/79,538.76
  6. Step 6: Final answer
    x = 49,185.63

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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.