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Finding the Fourth Proportional to 352,436.11, 486,348.81 and 191,287.71

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Solution

The fourth proportional to 352,436.11, 486,348.81 and 191,287.71 is: 263,969.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,436.11 : 486,348.81 = 191,287.71 : x
  2. Step 2: Convert to fraction form
    352,436.11/486,348.81 = 191,287.71/x
  3. Step 3: Cross multiply
    352,436.11x = 486,348.81 × 191,287.71
  4. Step 4: Simplify right side
    352,436.11x = 93,032,549,408.80
  5. Step 5: Solve for x
    x = 93,032,549,408.80/352,436.11
  6. Step 6: Final answer
    x = 263,969.97

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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.