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Finding the Fourth Proportional to 269,296.48, 371,629.88 and 161,928

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Solution

The fourth proportional to 269,296.48, 371,629.88 and 161,928 is: 223,461.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,296.48 : 371,629.88 = 161,928 : x
  2. Step 2: Convert to fraction form
    269,296.48/371,629.88 = 161,928/x
  3. Step 3: Cross multiply
    269,296.48x = 371,629.88 × 161,928
  4. Step 4: Simplify right side
    269,296.48x = 60,177,283,208.64
  5. Step 5: Solve for x
    x = 60,177,283,208.64/269,296.48
  6. Step 6: Final answer
    x = 223,461.08

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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.