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Finding the Fourth Proportional to 166,874.76, 230,284.08 and 91,422.72

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Solution

The fourth proportional to 166,874.76, 230,284.08 and 91,422.72 is: 126,161.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,874.76 : 230,284.08 = 91,422.72 : x
  2. Step 2: Convert to fraction form
    166,874.76/230,284.08 = 91,422.72/x
  3. Step 3: Cross multiply
    166,874.76x = 230,284.08 × 91,422.72
  4. Step 4: Simplify right side
    166,874.76x = 21,053,196,966.30
  5. Step 5: Solve for x
    x = 21,053,196,966.30/166,874.76
  6. Step 6: Final answer
    x = 126,161.66

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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.