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Finding the Fourth Proportional to 204,160.21, 306,302.48 and 104,390.48

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Solution

The fourth proportional to 204,160.21, 306,302.48 and 104,390.48 is: 156,617.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,160.21 : 306,302.48 = 104,390.48 : x
  2. Step 2: Convert to fraction form
    204,160.21/306,302.48 = 104,390.48/x
  3. Step 3: Cross multiply
    204,160.21x = 306,302.48 × 104,390.48
  4. Step 4: Simplify right side
    204,160.21x = 31,975,062,912.39
  5. Step 5: Solve for x
    x = 31,975,062,912.39/204,160.21
  6. Step 6: Final answer
    x = 156,617.51

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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.