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Finding the Fourth Proportional to 303,195.60, 454,428.90 and 125,611.20

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Solution

The fourth proportional to 303,195.60, 454,428.90 and 125,611.20 is: 188,265.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,195.60 : 454,428.90 = 125,611.20 : x
  2. Step 2: Convert to fraction form
    303,195.60/454,428.90 = 125,611.20/x
  3. Step 3: Cross multiply
    303,195.60x = 454,428.90 × 125,611.20
  4. Step 4: Simplify right side
    303,195.60x = 57,081,359,443.68
  5. Step 5: Solve for x
    x = 57,081,359,443.68/303,195.60
  6. Step 6: Final answer
    x = 188,265.79

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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.