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Finding the Fourth Proportional to 111,975.28, 167,991.80 and 41,855.12

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Solution

The fourth proportional to 111,975.28, 167,991.80 and 41,855.12 is: 62,793.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,975.28 : 167,991.80 = 41,855.12 : x
  2. Step 2: Convert to fraction form
    111,975.28/167,991.80 = 41,855.12/x
  3. Step 3: Cross multiply
    111,975.28x = 167,991.80 × 41,855.12
  4. Step 4: Simplify right side
    111,975.28x = 7,031,316,948.02
  5. Step 5: Solve for x
    x = 7,031,316,948.02/111,975.28
  6. Step 6: Final answer
    x = 62,793.48

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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.