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Finding the Fourth Proportional to 220,517.64, 304,313.76 and 119,915.64

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Solution

The fourth proportional to 220,517.64, 304,313.76 and 119,915.64 is: 165,483.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,517.64 : 304,313.76 = 119,915.64 : x
  2. Step 2: Convert to fraction form
    220,517.64/304,313.76 = 119,915.64/x
  3. Step 3: Cross multiply
    220,517.64x = 304,313.76 × 119,915.64
  4. Step 4: Simplify right side
    220,517.64x = 36,491,979,291.21
  5. Step 5: Solve for x
    x = 36,491,979,291.21/220,517.64
  6. Step 6: Final answer
    x = 165,483.27

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.