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Finding the Fourth Proportional to 206,502.80, 309,754.20 and 94,182.80

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Solution

The fourth proportional to 206,502.80, 309,754.20 and 94,182.80 is: 141,274.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,502.80 : 309,754.20 = 94,182.80 : x
  2. Step 2: Convert to fraction form
    206,502.80/309,754.20 = 94,182.80/x
  3. Step 3: Cross multiply
    206,502.80x = 309,754.20 × 94,182.80
  4. Step 4: Simplify right side
    206,502.80x = 29,173,517,867.76
  5. Step 5: Solve for x
    x = 29,173,517,867.76/206,502.80
  6. Step 6: Final answer
    x = 141,274.20

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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.