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Finding the Fourth Proportional to 111,579.68, 167,242.98 and 55,349.48

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Solution

The fourth proportional to 111,579.68, 167,242.98 and 55,349.48 is: 82,961.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,579.68 : 167,242.98 = 55,349.48 : x
  2. Step 2: Convert to fraction form
    111,579.68/167,242.98 = 55,349.48/x
  3. Step 3: Cross multiply
    111,579.68x = 167,242.98 × 55,349.48
  4. Step 4: Simplify right side
    111,579.68x = 9,256,811,976.65
  5. Step 5: Solve for x
    x = 9,256,811,976.65/111,579.68
  6. Step 6: Final answer
    x = 82,961.45

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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.