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Finding the Fourth Proportional to 111,448.56, 167,173.92 and 28,342.56

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Solution

The fourth proportional to 111,448.56, 167,173.92 and 28,342.56 is: 42,514.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,448.56 : 167,173.92 = 28,342.56 : x
  2. Step 2: Convert to fraction form
    111,448.56/167,173.92 = 28,342.56/x
  3. Step 3: Cross multiply
    111,448.56x = 167,173.92 × 28,342.56
  4. Step 4: Simplify right side
    111,448.56x = 4,738,136,858.04
  5. Step 5: Solve for x
    x = 4,738,136,858.04/111,448.56
  6. Step 6: Final answer
    x = 42,514.11

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1.5x scale

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.