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Finding the Fourth Proportional to 416,934.80, 625,536.12 and 136,388.24

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Solution

The fourth proportional to 416,934.80, 625,536.12 and 136,388.24 is: 204,626.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,934.80 : 625,536.12 = 136,388.24 : x
  2. Step 2: Convert to fraction form
    416,934.80/625,536.12 = 136,388.24/x
  3. Step 3: Cross multiply
    416,934.80x = 625,536.12 × 136,388.24
  4. Step 4: Simplify right side
    416,934.80x = 85,315,770,463.23
  5. Step 5: Solve for x
    x = 85,315,770,463.23/416,934.80
  6. Step 6: Final answer
    x = 204,626.17

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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.