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Finding the Fourth Proportional to 352,636.49, 486,640.16 and 191,491.54

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Solution

The fourth proportional to 352,636.49, 486,640.16 and 191,491.54 is: 264,259.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,636.49 : 486,640.16 = 191,491.54 : x
  2. Step 2: Convert to fraction form
    352,636.49/486,640.16 = 191,491.54/x
  3. Step 3: Cross multiply
    352,636.49x = 486,640.16 × 191,491.54
  4. Step 4: Simplify right side
    352,636.49x = 93,187,471,490.19
  5. Step 5: Solve for x
    x = 93,187,471,490.19/352,636.49
  6. Step 6: Final answer
    x = 264,259.30

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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.