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Finding the Fourth Proportional to 206,493.80, 310,028.70 and 132,074.60

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Solution

The fourth proportional to 206,493.80, 310,028.70 and 132,074.60 is: 198,296.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,493.80 : 310,028.70 = 132,074.60 : x
  2. Step 2: Convert to fraction form
    206,493.80/310,028.70 = 132,074.60/x
  3. Step 3: Cross multiply
    206,493.80x = 310,028.70 × 132,074.60
  4. Step 4: Simplify right side
    206,493.80x = 40,946,916,541.02
  5. Step 5: Solve for x
    x = 40,946,916,541.02/206,493.80
  6. Step 6: Final answer
    x = 198,296.11

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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.