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Finding the Fourth Proportional to 120,216.66, 165,884.63 and 66,494.37

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Solution

The fourth proportional to 120,216.66, 165,884.63 and 66,494.37 is: 91,754.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,216.66 : 165,884.63 = 66,494.37 : x
  2. Step 2: Convert to fraction form
    120,216.66/165,884.63 = 66,494.37/x
  3. Step 3: Cross multiply
    120,216.66x = 165,884.63 × 66,494.37
  4. Step 4: Simplify right side
    120,216.66x = 11,030,393,882.07
  5. Step 5: Solve for x
    x = 11,030,393,882.07/120,216.66
  6. Step 6: Final answer
    x = 91,754.29

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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.