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Finding the Fourth Proportional to 179,667.91, 269,505.51 and 120,618.91

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Solution

The fourth proportional to 179,667.91, 269,505.51 and 120,618.91 is: 180,930.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,667.91 : 269,505.51 = 120,618.91 : x
  2. Step 2: Convert to fraction form
    179,667.91/269,505.51 = 120,618.91/x
  3. Step 3: Cross multiply
    179,667.91x = 269,505.51 × 120,618.91
  4. Step 4: Simplify right side
    179,667.91x = 32,507,460,855.19
  5. Step 5: Solve for x
    x = 32,507,460,855.19/179,667.91
  6. Step 6: Final answer
    x = 180,930.81

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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.