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Finding the Fourth Proportional to 250,616.64, 345,819.11 and 143,193.63

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Solution

The fourth proportional to 250,616.64, 345,819.11 and 143,193.63 is: 197,589.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,616.64 : 345,819.11 = 143,193.63 : x
  2. Step 2: Convert to fraction form
    250,616.64/345,819.11 = 143,193.63/x
  3. Step 3: Cross multiply
    250,616.64x = 345,819.11 × 143,193.63
  4. Step 4: Simplify right side
    250,616.64x = 49,519,094,265.12
  5. Step 5: Solve for x
    x = 49,519,094,265.12/250,616.64
  6. Step 6: Final answer
    x = 197,589.01

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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.