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Finding the Fourth Proportional to 200,761.67, 300,740.99 and 120,755.46

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Solution

The fourth proportional to 200,761.67, 300,740.99 and 120,755.46 is: 180,891.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,761.67 : 300,740.99 = 120,755.46 : x
  2. Step 2: Convert to fraction form
    200,761.67/300,740.99 = 120,755.46/x
  3. Step 3: Cross multiply
    200,761.67x = 300,740.99 × 120,755.46
  4. Step 4: Simplify right side
    200,761.67x = 36,316,115,084.60
  5. Step 5: Solve for x
    x = 36,316,115,084.60/200,761.67
  6. Step 6: Final answer
    x = 180,891.68

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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.