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Finding the Fourth Proportional to 133,874.97, 200,539.05 and 74,742.13

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Solution

The fourth proportional to 133,874.97, 200,539.05 and 74,742.13 is: 111,960.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,874.97 : 200,539.05 = 74,742.13 : x
  2. Step 2: Convert to fraction form
    133,874.97/200,539.05 = 74,742.13/x
  3. Step 3: Cross multiply
    133,874.97x = 200,539.05 × 74,742.13
  4. Step 4: Simplify right side
    133,874.97x = 14,988,715,745.18
  5. Step 5: Solve for x
    x = 14,988,715,745.18/133,874.97
  6. Step 6: Final answer
    x = 111,960.55

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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.