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Finding the Fourth Proportional to 352,485.54, 528,806.07 and 115,818.12

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Solution

The fourth proportional to 352,485.54, 528,806.07 and 115,818.12 is: 173,752.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,485.54 : 528,806.07 = 115,818.12 : x
  2. Step 2: Convert to fraction form
    352,485.54/528,806.07 = 115,818.12/x
  3. Step 3: Cross multiply
    352,485.54x = 528,806.07 × 115,818.12
  4. Step 4: Simplify right side
    352,485.54x = 61,245,324,871.99
  5. Step 5: Solve for x
    x = 61,245,324,871.99/352,485.54
  6. Step 6: Final answer
    x = 173,752.73

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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.