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Finding the Fourth Proportional to 352,705.09, 486,736.53 and 191,563.28

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Solution

The fourth proportional to 352,705.09, 486,736.53 and 191,563.28 is: 264,359.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,705.09 : 486,736.53 = 191,563.28 : x
  2. Step 2: Convert to fraction form
    352,705.09/486,736.53 = 191,563.28/x
  3. Step 3: Cross multiply
    352,705.09x = 486,736.53 × 191,563.28
  4. Step 4: Simplify right side
    352,705.09x = 93,240,846,182.62
  5. Step 5: Solve for x
    x = 93,240,846,182.62/352,705.09
  6. Step 6: Final answer
    x = 264,359.23

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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.