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Finding the Fourth Proportional to 79,436.82, 119,171.64 and 23,278.76

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Solution

The fourth proportional to 79,436.82, 119,171.64 and 23,278.76 is: 34,922.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,436.82 : 119,171.64 = 23,278.76 : x
  2. Step 2: Convert to fraction form
    79,436.82/119,171.64 = 23,278.76/x
  3. Step 3: Cross multiply
    79,436.82x = 119,171.64 × 23,278.76
  4. Step 4: Simplify right side
    79,436.82x = 2,774,167,813.75
  5. Step 5: Solve for x
    x = 2,774,167,813.75/79,436.82
  6. Step 6: Final answer
    x = 34,922.95

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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.