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Finding the Fourth Proportional to 352,130.64, 485,933.64 and 199,166.16

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Solution

The fourth proportional to 352,130.64, 485,933.64 and 199,166.16 is: 274,845.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,130.64 : 485,933.64 = 199,166.16 : x
  2. Step 2: Convert to fraction form
    352,130.64/485,933.64 = 199,166.16/x
  3. Step 3: Cross multiply
    352,130.64x = 485,933.64 × 199,166.16
  4. Step 4: Simplify right side
    352,130.64x = 96,781,537,093.62
  5. Step 5: Solve for x
    x = 96,781,537,093.62/352,130.64
  6. Step 6: Final answer
    x = 274,845.54

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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.