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Finding the Fourth Proportional to 202,952.85, 280,131.21 and 118,086.30

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Solution

The fourth proportional to 202,952.85, 280,131.21 and 118,086.30 is: 162,991.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,952.85 : 280,131.21 = 118,086.30 : x
  2. Step 2: Convert to fraction form
    202,952.85/280,131.21 = 118,086.30/x
  3. Step 3: Cross multiply
    202,952.85x = 280,131.21 × 118,086.30
  4. Step 4: Simplify right side
    202,952.85x = 33,079,658,103.42
  5. Step 5: Solve for x
    x = 33,079,658,103.42/202,952.85
  6. Step 6: Final answer
    x = 162,991.84

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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.