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Finding the Fourth Proportional to 167,486.40, 251,229.60 and 165,736.80

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Solution

The fourth proportional to 167,486.40, 251,229.60 and 165,736.80 is: 248,605.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,486.40 : 251,229.60 = 165,736.80 : x
  2. Step 2: Convert to fraction form
    167,486.40/251,229.60 = 165,736.80/x
  3. Step 3: Cross multiply
    167,486.40x = 251,229.60 × 165,736.80
  4. Step 4: Simplify right side
    167,486.40x = 41,637,989,969.28
  5. Step 5: Solve for x
    x = 41,637,989,969.28/167,486.40
  6. Step 6: Final answer
    x = 248,605.20

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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.