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Finding the Fourth Proportional to 132,236.60, 182,486.30 and 72,620.60

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Solution

The fourth proportional to 132,236.60, 182,486.30 and 72,620.60 is: 100,216.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,236.60 : 182,486.30 = 72,620.60 : x
  2. Step 2: Convert to fraction form
    132,236.60/182,486.30 = 72,620.60/x
  3. Step 3: Cross multiply
    132,236.60x = 182,486.30 × 72,620.60
  4. Step 4: Simplify right side
    132,236.60x = 13,252,264,597.78
  5. Step 5: Solve for x
    x = 13,252,264,597.78/132,236.60
  6. Step 6: Final answer
    x = 100,216.31

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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.