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Finding the Fourth Proportional to 111,487.68, 167,143.68 and 55,290.24

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Solution

The fourth proportional to 111,487.68, 167,143.68 and 55,290.24 is: 82,891.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,487.68 : 167,143.68 = 55,290.24 : x
  2. Step 2: Convert to fraction form
    111,487.68/167,143.68 = 55,290.24/x
  3. Step 3: Cross multiply
    111,487.68x = 167,143.68 × 55,290.24
  4. Step 4: Simplify right side
    111,487.68x = 9,241,414,181.68
  5. Step 5: Solve for x
    x = 9,241,414,181.68/111,487.68
  6. Step 6: Final answer
    x = 82,891.80

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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.