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Finding the Fourth Proportional to 111,312.79, 166,969.10 and 27,072.38

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Solution

The fourth proportional to 111,312.79, 166,969.10 and 27,072.38 is: 40,608.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,312.79 : 166,969.10 = 27,072.38 : x
  2. Step 2: Convert to fraction form
    111,312.79/166,969.10 = 27,072.38/x
  3. Step 3: Cross multiply
    111,312.79x = 166,969.10 × 27,072.38
  4. Step 4: Simplify right side
    111,312.79x = 4,520,251,408.56
  5. Step 5: Solve for x
    x = 4,520,251,408.56/111,312.79
  6. Step 6: Final answer
    x = 40,608.55

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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.