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Finding the Fourth Proportional to 120,534.56, 166,347.63 and 66,836.42

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Solution

The fourth proportional to 120,534.56, 166,347.63 and 66,836.42 is: 92,239.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,534.56 : 166,347.63 = 66,836.42 : x
  2. Step 2: Convert to fraction form
    120,534.56/166,347.63 = 66,836.42/x
  3. Step 3: Cross multiply
    120,534.56x = 166,347.63 × 66,836.42
  4. Step 4: Simplify right side
    120,534.56x = 11,118,080,064.68
  5. Step 5: Solve for x
    x = 11,118,080,064.68/120,534.56
  6. Step 6: Final answer
    x = 92,239.77

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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.