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Finding the Fourth Proportional to 171,011.60, 256,517.40 and 161,826.20

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Solution

The fourth proportional to 171,011.60, 256,517.40 and 161,826.20 is: 242,739.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,011.60 : 256,517.40 = 161,826.20 : x
  2. Step 2: Convert to fraction form
    171,011.60/256,517.40 = 161,826.20/x
  3. Step 3: Cross multiply
    171,011.60x = 256,517.40 × 161,826.20
  4. Step 4: Simplify right side
    171,011.60x = 41,511,236,075.88
  5. Step 5: Solve for x
    x = 41,511,236,075.88/171,011.60
  6. Step 6: Final answer
    x = 242,739.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.