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Finding the Fourth Proportional to 418,060.46, 627,256.74 and 133,794.60

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Solution

The fourth proportional to 418,060.46, 627,256.74 and 133,794.60 is: 200,745.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,060.46 : 627,256.74 = 133,794.60 : x
  2. Step 2: Convert to fraction form
    418,060.46/627,256.74 = 133,794.60/x
  3. Step 3: Cross multiply
    418,060.46x = 627,256.74 × 133,794.60
  4. Step 4: Simplify right side
    418,060.46x = 83,923,564,625.60
  5. Step 5: Solve for x
    x = 83,923,564,625.60/418,060.46
  6. Step 6: Final answer
    x = 200,745.04

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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.