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Finding the Fourth Proportional to 325,920.50, 489,097.68 and 133,952.37

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Solution

The fourth proportional to 325,920.50, 489,097.68 and 133,952.37 is: 201,017.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,920.50 : 489,097.68 = 133,952.37 : x
  2. Step 2: Convert to fraction form
    325,920.50/489,097.68 = 133,952.37/x
  3. Step 3: Cross multiply
    325,920.50x = 489,097.68 × 133,952.37
  4. Step 4: Simplify right side
    325,920.50x = 65,515,792,727.74
  5. Step 5: Solve for x
    x = 65,515,792,727.74/325,920.50
  6. Step 6: Final answer
    x = 201,017.71

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1.5x scale

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.