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Finding the Fourth Proportional to 416,876.15, 625,003.17 and 195,208.31

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Solution

The fourth proportional to 416,876.15, 625,003.17 and 195,208.31 is: 292,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,876.15 : 625,003.17 = 195,208.31 : x
  2. Step 2: Convert to fraction form
    416,876.15/625,003.17 = 195,208.31/x
  3. Step 3: Cross multiply
    416,876.15x = 625,003.17 × 195,208.31
  4. Step 4: Simplify right side
    416,876.15x = 122,005,809,435.33
  5. Step 5: Solve for x
    x = 122,005,809,435.33/416,876.15
  6. Step 6: Final answer
    x = 292,666.80

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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.