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Finding the Fourth Proportional to 352,309.37, 528,551.54 and 102,991.37

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Solution

The fourth proportional to 352,309.37, 528,551.54 and 102,991.37 is: 154,512.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,309.37 : 528,551.54 = 102,991.37 : x
  2. Step 2: Convert to fraction form
    352,309.37/528,551.54 = 102,991.37/x
  3. Step 3: Cross multiply
    352,309.37x = 528,551.54 × 102,991.37
  4. Step 4: Simplify right side
    352,309.37x = 54,436,247,220.21
  5. Step 5: Solve for x
    x = 54,436,247,220.21/352,309.37
  6. Step 6: Final answer
    x = 154,512.63

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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.