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Finding the Fourth Proportional to 111,581.42, 167,372.04 and 28,475.42

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Solution

The fourth proportional to 111,581.42, 167,372.04 and 28,475.42 is: 42,713.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,581.42 : 167,372.04 = 28,475.42 : x
  2. Step 2: Convert to fraction form
    111,581.42/167,372.04 = 28,475.42/x
  3. Step 3: Cross multiply
    111,581.42x = 167,372.04 × 28,475.42
  4. Step 4: Simplify right side
    111,581.42x = 4,765,989,135.26
  5. Step 5: Solve for x
    x = 4,765,989,135.26/111,581.42
  6. Step 6: Final answer
    x = 42,713.11

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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.