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Finding the Fourth Proportional to 484,665.24, 726,945.96 and 169,128.12

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Solution

The fourth proportional to 484,665.24, 726,945.96 and 169,128.12 is: 253,674.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,665.24 : 726,945.96 = 169,128.12 : x
  2. Step 2: Convert to fraction form
    484,665.24/726,945.96 = 169,128.12/x
  3. Step 3: Cross multiply
    484,665.24x = 726,945.96 × 169,128.12
  4. Step 4: Simplify right side
    484,665.24x = 122,947,003,556.40
  5. Step 5: Solve for x
    x = 122,947,003,556.40/484,665.24
  6. Step 6: Final answer
    x = 253,674.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.