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Finding the Fourth Proportional to 441,251.69, 661,768.19 and 125,711.33

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Solution

The fourth proportional to 441,251.69, 661,768.19 and 125,711.33 is: 188,535.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,251.69 : 661,768.19 = 125,711.33 : x
  2. Step 2: Convert to fraction form
    441,251.69/661,768.19 = 125,711.33/x
  3. Step 3: Cross multiply
    441,251.69x = 661,768.19 × 125,711.33
  4. Step 4: Simplify right side
    441,251.69x = 83,191,758,688.04
  5. Step 5: Solve for x
    x = 83,191,758,688.04/441,251.69
  6. Step 6: Final answer
    x = 188,535.84

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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.