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Finding the Fourth Proportional to 133,497.72, 200,129.94 and 66,844.44

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Solution

The fourth proportional to 133,497.72, 200,129.94 and 66,844.44 is: 100,208.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,497.72 : 200,129.94 = 66,844.44 : x
  2. Step 2: Convert to fraction form
    133,497.72/200,129.94 = 66,844.44/x
  3. Step 3: Cross multiply
    133,497.72x = 200,129.94 × 66,844.44
  4. Step 4: Simplify right side
    133,497.72x = 13,377,573,766.53
  5. Step 5: Solve for x
    x = 13,377,573,766.53/133,497.72
  6. Step 6: Final answer
    x = 100,208.26

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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.