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Finding the Fourth Proportional to 222,739.20, 334,108.80 and 163,690.20

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Solution

The fourth proportional to 222,739.20, 334,108.80 and 163,690.20 is: 245,535.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,739.20 : 334,108.80 = 163,690.20 : x
  2. Step 2: Convert to fraction form
    222,739.20/334,108.80 = 163,690.20/x
  3. Step 3: Cross multiply
    222,739.20x = 334,108.80 × 163,690.20
  4. Step 4: Simplify right side
    222,739.20x = 54,690,336,293.76
  5. Step 5: Solve for x
    x = 54,690,336,293.76/222,739.20
  6. Step 6: Final answer
    x = 245,535.30

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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.