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Finding the Fourth Proportional to 661,609.62, 992,451.96 and 188,257.50

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Solution

The fourth proportional to 661,609.62, 992,451.96 and 188,257.50 is: 282,396.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,609.62 : 992,451.96 = 188,257.50 : x
  2. Step 2: Convert to fraction form
    661,609.62/992,451.96 = 188,257.50/x
  3. Step 3: Cross multiply
    661,609.62x = 992,451.96 × 188,257.50
  4. Step 4: Simplify right side
    661,609.62x = 186,836,524,859.70
  5. Step 5: Solve for x
    x = 186,836,524,859.70/661,609.62
  6. Step 6: Final answer
    x = 282,396.93

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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.