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Finding the Fourth Proportional to 167,387.68, 230,992.84 and 91,931.32

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Solution

The fourth proportional to 167,387.68, 230,992.84 and 91,931.32 is: 126,864.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,387.68 : 230,992.84 = 91,931.32 : x
  2. Step 2: Convert to fraction form
    167,387.68/230,992.84 = 91,931.32/x
  3. Step 3: Cross multiply
    167,387.68x = 230,992.84 × 91,931.32
  4. Step 4: Simplify right side
    167,387.68x = 21,235,476,691.75
  5. Step 5: Solve for x
    x = 21,235,476,691.75/167,387.68
  6. Step 6: Final answer
    x = 126,864.04

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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.