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Finding the Fourth Proportional to 216,811.73, 325,215.78 and 169,466.64

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Solution

The fourth proportional to 216,811.73, 325,215.78 and 169,466.64 is: 254,198.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,811.73 : 325,215.78 = 169,466.64 : x
  2. Step 2: Convert to fraction form
    216,811.73/325,215.78 = 169,466.64/x
  3. Step 3: Cross multiply
    216,811.73x = 325,215.78 × 169,466.64
  4. Step 4: Simplify right side
    216,811.73x = 55,113,224,664.25
  5. Step 5: Solve for x
    x = 55,113,224,664.25/216,811.73
  6. Step 6: Final answer
    x = 254,198.54

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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.