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Finding the Fourth Proportional to 147,276.73, 220,709.11 and 79,662.75

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Solution

The fourth proportional to 147,276.73, 220,709.11 and 79,662.75 is: 119,382.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,276.73 : 220,709.11 = 79,662.75 : x
  2. Step 2: Convert to fraction form
    147,276.73/220,709.11 = 79,662.75/x
  3. Step 3: Cross multiply
    147,276.73x = 220,709.11 × 79,662.75
  4. Step 4: Simplify right side
    147,276.73x = 17,582,294,652.65
  5. Step 5: Solve for x
    x = 17,582,294,652.65/147,276.73
  6. Step 6: Final answer
    x = 119,382.71

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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.