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Finding the Fourth Proportional to 166,809.60, 230,207.52 and 91,357.92

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Solution

The fourth proportional to 166,809.60, 230,207.52 and 91,357.92 is: 126,079.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,809.60 : 230,207.52 = 91,357.92 : x
  2. Step 2: Convert to fraction form
    166,809.60/230,207.52 = 91,357.92/x
  3. Step 3: Cross multiply
    166,809.60x = 230,207.52 × 91,357.92
  4. Step 4: Simplify right side
    166,809.60x = 21,031,280,195.56
  5. Step 5: Solve for x
    x = 21,031,280,195.56/166,809.60
  6. Step 6: Final answer
    x = 126,079.56

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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.