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Finding the Fourth Proportional to 205,707.67, 308,450.56 and 93,326.57

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Solution

The fourth proportional to 205,707.67, 308,450.56 and 93,326.57 is: 139,939.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,707.67 : 308,450.56 = 93,326.57 : x
  2. Step 2: Convert to fraction form
    205,707.67/308,450.56 = 93,326.57/x
  3. Step 3: Cross multiply
    205,707.67x = 308,450.56 × 93,326.57
  4. Step 4: Simplify right side
    205,707.67x = 28,786,632,597.97
  5. Step 5: Solve for x
    x = 28,786,632,597.97/205,707.67
  6. Step 6: Final answer
    x = 139,939.52

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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.