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Finding the Fourth Proportional to 111,464.42, 167,098.21 and 85,286.03

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Solution

The fourth proportional to 111,464.42, 167,098.21 and 85,286.03 is: 127,853.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,464.42 : 167,098.21 = 85,286.03 : x
  2. Step 2: Convert to fraction form
    111,464.42/167,098.21 = 85,286.03/x
  3. Step 3: Cross multiply
    111,464.42x = 167,098.21 × 85,286.03
  4. Step 4: Simplify right side
    111,464.42x = 14,251,142,951.01
  5. Step 5: Solve for x
    x = 14,251,142,951.01/111,464.42
  6. Step 6: Final answer
    x = 127,853.74

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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.