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Finding the Fourth Proportional to 263,614.80, 363,786.62 and 142,753.32

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Solution

The fourth proportional to 263,614.80, 363,786.62 and 142,753.32 is: 196,998.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,614.80 : 363,786.62 = 142,753.32 : x
  2. Step 2: Convert to fraction form
    263,614.80/363,786.62 = 142,753.32/x
  3. Step 3: Cross multiply
    263,614.80x = 363,786.62 × 142,753.32
  4. Step 4: Simplify right side
    263,614.80x = 51,931,747,776.58
  5. Step 5: Solve for x
    x = 51,931,747,776.58/263,614.80
  6. Step 6: Final answer
    x = 196,998.60

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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.