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Finding the Fourth Proportional to 326,598.41, 489,928.43 and 126,934.09

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Solution

The fourth proportional to 326,598.41, 489,928.43 and 126,934.09 is: 190,413.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,598.41 : 489,928.43 = 126,934.09 : x
  2. Step 2: Convert to fraction form
    326,598.41/489,928.43 = 126,934.09/x
  3. Step 3: Cross multiply
    326,598.41x = 489,928.43 × 126,934.09
  4. Step 4: Simplify right side
    326,598.41x = 62,188,618,519.69
  5. Step 5: Solve for x
    x = 62,188,618,519.69/326,598.41
  6. Step 6: Final answer
    x = 190,413.11

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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.