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Finding the Fourth Proportional to 251,643.57, 347,155.26 and 169,945.29

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Solution

The fourth proportional to 251,643.57, 347,155.26 and 169,945.29 is: 234,448.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,643.57 : 347,155.26 = 169,945.29 : x
  2. Step 2: Convert to fraction form
    251,643.57/347,155.26 = 169,945.29/x
  3. Step 3: Cross multiply
    251,643.57x = 347,155.26 × 169,945.29
  4. Step 4: Simplify right side
    251,643.57x = 58,997,401,335.73
  5. Step 5: Solve for x
    x = 58,997,401,335.73/251,643.57
  6. Step 6: Final answer
    x = 234,448.28

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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.