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Finding the Fourth Proportional to 222,756.60, 334,134.90 and 143,959.80

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Solution

The fourth proportional to 222,756.60, 334,134.90 and 143,959.80 is: 215,939.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,756.60 : 334,134.90 = 143,959.80 : x
  2. Step 2: Convert to fraction form
    222,756.60/334,134.90 = 143,959.80/x
  3. Step 3: Cross multiply
    222,756.60x = 334,134.90 × 143,959.80
  4. Step 4: Simplify right side
    222,756.60x = 48,101,993,377.02
  5. Step 5: Solve for x
    x = 48,101,993,377.02/222,756.60
  6. Step 6: Final answer
    x = 215,939.70

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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.