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Finding the Fourth Proportional to 274,287.54, 378,553.17 and 153,475.14

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Solution

The fourth proportional to 274,287.54, 378,553.17 and 153,475.14 is: 211,816.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,287.54 : 378,553.17 = 153,475.14 : x
  2. Step 2: Convert to fraction form
    274,287.54/378,553.17 = 153,475.14/x
  3. Step 3: Cross multiply
    274,287.54x = 378,553.17 × 153,475.14
  4. Step 4: Simplify right side
    274,287.54x = 58,098,500,763.19
  5. Step 5: Solve for x
    x = 58,098,500,763.19/274,287.54
  6. Step 6: Final answer
    x = 211,816.04

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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.