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Finding the Fourth Proportional to 206,405.04, 309,695.22 and 112,801.44

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Solution

The fourth proportional to 206,405.04, 309,695.22 and 112,801.44 is: 169,250.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,405.04 : 309,695.22 = 112,801.44 : x
  2. Step 2: Convert to fraction form
    206,405.04/309,695.22 = 112,801.44/x
  3. Step 3: Cross multiply
    206,405.04x = 309,695.22 × 112,801.44
  4. Step 4: Simplify right side
    206,405.04x = 34,934,066,777.12
  5. Step 5: Solve for x
    x = 34,934,066,777.12/206,405.04
  6. Step 6: Final answer
    x = 169,250.07

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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.