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Finding the Fourth Proportional to 166,511, 229,785.36 and 91,059.68

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Solution

The fourth proportional to 166,511, 229,785.36 and 91,059.68 is: 125,662.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,511 : 229,785.36 = 91,059.68 : x
  2. Step 2: Convert to fraction form
    166,511/229,785.36 = 91,059.68/x
  3. Step 3: Cross multiply
    166,511x = 229,785.36 × 91,059.68
  4. Step 4: Simplify right side
    166,511x = 20,924,181,350.28
  5. Step 5: Solve for x
    x = 20,924,181,350.28/166,511
  6. Step 6: Final answer
    x = 125,662.46

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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.