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Finding the Fourth Proportional to 167,213.75, 230,754.28 and 99,286.64

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Solution

The fourth proportional to 167,213.75, 230,754.28 and 99,286.64 is: 137,015.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,213.75 : 230,754.28 = 99,286.64 : x
  2. Step 2: Convert to fraction form
    167,213.75/230,754.28 = 99,286.64/x
  3. Step 3: Cross multiply
    167,213.75x = 230,754.28 × 99,286.64
  4. Step 4: Simplify right side
    167,213.75x = 22,910,817,666.21
  5. Step 5: Solve for x
    x = 22,910,817,666.21/167,213.75
  6. Step 6: Final answer
    x = 137,015.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.