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Finding the Fourth Proportional to 303,215.10, 454,458.15 and 125,630.70

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Solution

The fourth proportional to 303,215.10, 454,458.15 and 125,630.70 is: 188,295.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,215.10 : 454,458.15 = 125,630.70 : x
  2. Step 2: Convert to fraction form
    303,215.10/454,458.15 = 125,630.70/x
  3. Step 3: Cross multiply
    303,215.10x = 454,458.15 × 125,630.70
  4. Step 4: Simplify right side
    303,215.10x = 57,093,895,505.21
  5. Step 5: Solve for x
    x = 57,093,895,505.21/303,215.10
  6. Step 6: Final answer
    x = 188,295.03

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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.