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Finding the Fourth Proportional to 352,871.26, 486,964.34 and 191,727.61

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Solution

The fourth proportional to 352,871.26, 486,964.34 and 191,727.61 is: 264,585.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,871.26 : 486,964.34 = 191,727.61 : x
  2. Step 2: Convert to fraction form
    352,871.26/486,964.34 = 191,727.61/x
  3. Step 3: Cross multiply
    352,871.26x = 486,964.34 × 191,727.61
  4. Step 4: Simplify right side
    352,871.26x = 93,364,509,063.43
  5. Step 5: Solve for x
    x = 93,364,509,063.43/352,871.26
  6. Step 6: Final answer
    x = 264,585.19

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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.