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Finding the Fourth Proportional to 167,322, 230,905.98 and 91,872.12

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Solution

The fourth proportional to 167,322, 230,905.98 and 91,872.12 is: 126,784.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,322 : 230,905.98 = 91,872.12 : x
  2. Step 2: Convert to fraction form
    167,322/230,905.98 = 91,872.12/x
  3. Step 3: Cross multiply
    167,322x = 230,905.98 × 91,872.12
  4. Step 4: Simplify right side
    167,322x = 21,213,821,903.28
  5. Step 5: Solve for x
    x = 21,213,821,903.28/167,322
  6. Step 6: Final answer
    x = 126,784.42

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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.